diff --git a/framework/core/locale/core.yml b/framework/core/locale/core.yml
new file mode 100644
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--- /dev/null
+++ b/framework/core/locale/core.yml
@@ -0,0 +1,653 @@
+core:
+
+  ##
+  # UNIQUE KEYS - The following keys are used in only one location each.
+  ##
+
+  # Translations in this namespace are used by the admin interface.
+  admin:
+
+    # These translations are used in the Appearance page.
+    appearance:
+      colored_header_label: Colored Header
+      colors_heading: Colors
+      colors_text: "Choose two colors to theme your forum with. The first will be used as a highlight color, while the second will be used to style background elements."
+      custom_footer_heading: Custom Footer
+      custom_footer_text: => core.ref.custom_footer_text
+      custom_header_heading: Custom Header
+      custom_header_text: => core.ref.custom_header_text
+      custom_styles_heading: Custom Styles
+      custom_styles_text: Customize your forum's appearance by adding your own LESS/CSS code to be applied on top of Flarum's default styles.
+      dark_mode_label: Dark Mode
+      description: "Customize your forum's colors, logos, and other variables."
+      edit_css_button: Edit Custom CSS
+      edit_footer_button: => core.ref.custom_footer_title
+      edit_header_button: => core.ref.custom_header_title
+      enter_hex_message: Please enter a hexadecimal color code.
+      favicon_heading: Favicon
+      favicon_text: Upload an image to be displayed as the forum's shortcut icon.
+      logo_heading: Logo
+      logo_text: Upload an image to be displayed in place of the forum title.
+      submit_button: => core.ref.save_changes
+      title: Appearance
+
+    # These translations are used in the Basics page.
+    basics:
+      all_discussions_label: => core.ref.all_discussions
+      default_language_heading: Default Language
+      description: "Set your forum title, language, and other basic settings."
+      display_name_heading: User Display Name
+      display_name_text: Select the driver that should be used for users' display names. By default, the username is shown.
+      forum_description_heading: Forum Description
+      forum_description_text: Enter a short sentence or two that describes your community. This will appear in the meta tag and show up in search engines.
+      forum_title_heading: Forum Title
+      home_page_heading: Home Page
+      home_page_text: Choose the page which users will first see when they visit your forum.
+      saved_message: Your changes were saved.
+      show_language_selector_label: Show language selector
+      slug_driver_heading: "Slug Driver: {model}"
+      slug_driver_text: Select a driver to be used for slugging this model.
+      submit_button: => core.ref.save_changes
+      title: Basics
+      welcome_banner_heading: Welcome Banner
+      welcome_banner_text: Configure the text that displays in the banner on the All Discussions page. Use this to welcome guests to your forum.
+
+    # These translations are used in the Dashboard page.
+    dashboard:
+      clear_cache_button: Clear Cache
+      description: Your forum at a glance.
+      title: Dashboard
+      tools_button: Tools
+
+    # These translations are used in the Edit Custom CSS modal dialog.
+    edit_css:
+      customize_text: "Customize your forum's appearance by adding your own LESS/CSS code to be applied on top of Flarum's <a>default styles</a>."
+      submit_button: => core.ref.save_changes
+      title: Edit Custom CSS
+
+    # These translations are used in the Edit Custom Footer modal dialog.
+    edit_footer:
+      customize_text: => core.ref.custom_footer_text
+      submit_button: => core.ref.save_changes
+      title: => core.ref.custom_footer_title
+
+    # These translations are used in the Edit Group modal dialog.
+    edit_group:
+      color_label: => core.ref.color
+      delete_button: Delete Group
+      delete_confirmation: "Are you sure you want to delete this group? The group members will NOT be deleted."
+      hide_label: Hide on forum
+      icon_label: => core.ref.icon
+      icon_text: => core.ref.icon_text
+      name_label: Name
+      plural_placeholder: Plural (e.g. Mods)
+      singular_placeholder: Singular (e.g. Mod)
+      submit_button: => core.ref.save_changes
+      title: Create Group
+
+    # These translations are used in the Edit Custom Header modal dialog.
+    edit_header:
+      customize_text: => core.ref.custom_header_text
+      submit_button: => core.ref.save_changes
+      title: => core.ref.custom_header_title
+
+    # These translations are used in the email page of the admin interface.
+    email:
+      addresses_heading: Addresses
+      description: "Configure the driver, settings and addresses your forum will use to send email."
+      driver_heading: Choose a Driver
+      driver_label: Driver
+      from_label: Sender
+      mail_encryption_label: Encryption
+      mail_host_label: Host
+      mail_mailgun_domain_label: Domain
+      mail_mailgun_region_label: Region
+      mail_mailgun_secret_label: Secret key
+      mail_password_label: => core.ref.password
+      mail_port_label: Port
+      mail_username_label: => core.ref.username
+      mailgun_heading: Mailgun Settings
+      not_sending_message: Flarum currently does not send emails. This can be due to the selected driver, or errors in its configuration.
+      send_test_mail_button: Send
+      send_test_mail_heading: Send Test Mail
+      send_test_mail_success: "Test mail sent successfully!"
+      send_test_mail_text: "This will send an email using the above configuration to your email, {email}."
+      smtp_heading: SMTP Settings
+      submit_button: => core.ref.save_changes
+      title: => core.ref.email
+
+    # These translations are used on default extension pages.
+    extension:
+      confirm_uninstall: Uninstalling will remove all database entries and assets related to the extension. Are you sure you want to continue?
+      disabled: Disabled
+      enable_to_see: Enable the extension to view and change settings.
+      enabled: Enabled
+      info_links:
+        discuss: Discuss
+        documentation: Documentation
+        donate: Donate
+        source: Source
+        support: Support
+        website: Website
+      no_permissions: This extension has no permissions.
+      no_settings: This extension has no settings.
+      open_modal: Open Settings
+      permissions_title: Permissions
+      saved_message: Your changes were saved.
+      uninstall_button: Uninstall
+
+    # These translations are used in the secondary header.
+    header:
+      get_help: Get Help
+      log_out_button: => core.ref.log_out
+
+    # These translations are used in the modal dialog displayed when loading extensions.
+    loading:
+      title: Please Wait...
+
+    # These translations are used in the navigation bar.
+    nav:
+      appearance_button: => core.admin.appearance.title
+      appearance_title: => core.admin.appearance.description
+      basics_button: => core.admin.basics.title
+      basics_title: => core.admin.basics.description
+      categories:
+        authentication: Authentication
+        core: Core Configuration
+        discussion: Discussion
+        feature: Features
+        formatting: Formatting
+        language: Languages
+        moderation: Moderation
+        other: Other Extensions
+        theme: Themes
+      dashboard_button: => core.admin.dashboard.title
+      dashboard_title: => core.admin.dashboard.description
+      email_button: => core.ref.email
+      email_title: => core.admin.email.description
+      permissions_button: => core.admin.permissions.title
+      permissions_title: => core.admin.permissions.description
+      search_placeholder: Search Extensions
+
+    # These translations are used in the Permissions page of the admin interface.
+    permissions:
+      allow_post_editing_label: Allow post editing
+      allow_renaming_label: Allow renaming
+      create_heading: Create
+      delete_discussions_forever_label: Delete discussions forever
+      delete_discussions_label: Delete discussions
+      delete_posts_forever_label: Delete posts forever
+      delete_posts_label: Delete posts
+      description: Configure who can see and do what.
+      edit_posts_label: Edit posts
+      edit_users_label: Edit users
+      global_heading: Global
+      moderate_heading: Moderate
+      new_group_button: New Group
+      participate_heading: Participate
+      post_without_throttle_label: Reply multiple times without waiting
+      read_heading: Read
+      rename_discussions_label: Rename discussions
+      reply_to_discussions_label: Reply to discussions
+      sign_up_label: Sign up
+      start_discussions_label: Start discussions
+      title: Permissions
+      view_discussions_label: View discussions
+      view_hidden_groups_label: View hidden group badges
+      view_last_seen_at_label: Always view user last seen time
+      view_post_ips_label: View post IP addresses
+      view_user_list_label: View user list
+
+    # These translations are used in the dropdown menus on the Permissions page.
+    permissions_controls:
+      allow_indefinitely_button: Indefinitely
+      allow_some_minutes_button: "For {count} minute|For {count} minutes"
+      allow_ten_minutes_button: For 10 minutes
+      allow_until_reply_button: Until next reply
+      everyone_button: Everyone
+      members_button: => core.group.members
+      signup_closed_button: Closed
+      signup_open_button: Open
+
+    # These translations are used in the Settings modal dialog.
+    settings:
+      submit_button: => core.ref.save_changes
+
+    # These translations are used in image upload buttons.
+    upload_image:
+      remove_button: => core.ref.remove
+      upload_button: Choose an Image...
+
+  # Translations in this namespace are used by the forum user interface.
+  forum:
+
+    # These translations are used in the Change Email modal dialog.
+    change_email:
+      confirm_password_placeholder: => core.ref.confirm_password
+      confirmation_message: => core.ref.confirmation_email_sent
+      dismiss_button: => core.ref.okay
+      incorrect_password_message: The password you entered is incorrect.
+      submit_button: => core.ref.save_changes
+      title: => core.ref.change_email
+
+    # These translations are used in the Change Password modal dialog.
+    change_password:
+      send_button: Send Password Reset Email
+      text: Click the button below and check your email for a link to change your password.
+      title: => core.ref.change_password
+
+    # These translations are used by the composer controls.
+    composer:
+      close_tooltip: Close
+      exit_full_screen_tooltip: Exit Full Screen
+      full_screen_tooltip: Full Screen
+      minimize_tooltip: Minimize
+      preview_tooltip: Preview
+
+    # These translations are used by the composer when starting a discussion.
+    composer_discussion:
+      body_placeholder: Write a Post...
+      discard_confirmation: "You have not posted your discussion. Do you wish to discard it?"
+      submit_button: Post Discussion
+      title: => core.ref.start_a_discussion
+      title_placeholder: Discussion Title
+
+    # These translations are used by the composer when editing a post.
+    composer_edit:
+      discard_confirmation: "You have not saved your changes. Do you wish to discard them?"
+      edited_message: Your edit was made.
+      post_link: "Post #{number} in {discussion}"
+      submit_button: => core.ref.save_changes
+      view_button: => core.ref.view
+
+    # These translations are used by the composer when replying to a discussion.
+    composer_reply:
+      body_placeholder: => core.ref.write_a_reply
+      discard_confirmation: "You have not posted your reply. Do you wish to discard it?"
+      posted_message: Your reply was posted.
+      submit_button: Post Reply
+      view_button: => core.ref.view
+
+    # These translations are used by the discussion control buttons.
+    discussion_controls:
+      cannot_reply_button: Can't Reply
+      cannot_reply_text: You don't have permission to reply to this discussion.
+      delete_button: => core.ref.delete
+      delete_confirmation: "Are you sure you want to delete this discussion?"
+      delete_forever_button: => core.ref.delete_forever
+      log_in_to_reply_button: Log In to Reply
+      rename_button: => core.ref.rename
+      reply_button: => core.ref.reply
+      restore_button: => core.ref.restore
+
+    # These translations are used in the discussion list.
+    discussion_list:
+      empty_text: It looks as though there are no discussions here.
+      load_more_button: => core.ref.load_more
+      mark_as_read_tooltip: Mark as Read
+      replied_text: "{username} replied {ago}"
+      started_text: "{username} started {ago}"
+
+    # These translations are used in the Edit User modal dialog (admin function).
+    edit_user:
+      activate_button: Activate User
+      email_heading: => core.ref.email
+      email_label: => core.ref.email
+      groups_heading: Groups
+      password_heading: => core.ref.password
+      password_label: => core.ref.password
+      set_password_label: Set new password
+      submit_button: => core.ref.save_changes
+      title: Edit User
+      username_heading: => core.ref.username
+      username_label: => core.ref.username
+
+    # These translations are used in the Forgot Password modal dialog.
+    forgot_password:
+      dismiss_button: => core.ref.okay
+      email_placeholder: => core.ref.email
+      email_sent_message: We've sent you an email containing a link to reset your password. Check your spam folder if you don't receive it within the next minute or two.
+      not_found_message: There is no user registered with that email address.
+      submit_button: Recover Password
+      text: Enter your email address and we will send you a link to reset your password.
+      title: Forgot Password
+
+    # These translations are used in the header and session dropdown menu.
+    header:
+      admin_button: Administration
+      back_to_index_tooltip: Back to Discussion List
+      log_in_link: => core.ref.log_in
+      log_out_button: => core.ref.log_out
+      profile_button: Profile
+      search_placeholder: Search Forum
+      settings_button: => core.ref.settings
+      sign_up_link: => core.ref.sign_up
+
+    # These translations are used on the index page, peripheral to the discussion list.
+    index:
+      all_discussions_link: => core.ref.all_discussions
+      cannot_start_discussion_button: Can't Start Discussion
+      mark_all_as_read_confirmation: "Are you sure you want to mark all discussions as read?"
+      mark_all_as_read_tooltip: => core.ref.mark_all_as_read
+      meta_title_text: => core.ref.all_discussions
+      refresh_tooltip: Refresh
+      start_discussion_button: => core.ref.start_a_discussion
+
+    # These translations are used by the sorting control above the discussion list.
+    index_sort:
+      latest_button: Latest
+      newest_button: Newest
+      oldest_button: Oldest
+      relevance_button: Relevance
+      top_button: Top
+
+    # These translations are used in the Log In modal dialog.
+    log_in:
+      forgot_password_link: "Forgot password?"
+      invalid_login_message: Your login details were incorrect.
+      password_placeholder: => core.ref.password
+      remember_me_label: Remember Me
+      sign_up_text: "Don't have an account? <a>Sign Up</a>"
+      submit_button: => core.ref.log_in
+      title: => core.ref.log_in
+      username_or_email_placeholder: Username or Email
+
+    # These translations are used by the Notifications dropdown, a.k.a. "the bell".
+    notifications:
+      discussion_renamed_text: "{username} changed the title"
+      empty_text: No Notifications
+      mark_all_as_read_tooltip: => core.ref.mark_all_as_read
+      mark_as_read_tooltip: Mark as Read
+      title: => core.ref.notifications
+      tooltip: => core.ref.notifications
+
+    # These translations are used by tooltips displayed for individual posts.
+    post:
+      edited_text: Edited
+      edited_tooltip: "{username} edited {ago}"
+      number_tooltip: "Post #{number}"
+
+    # These translations are used by the post control buttons.
+    post_controls:
+      delete_button: => core.ref.delete
+      delete_confirmation: "Are you sure you want to delete this post forever? This action cannot be undone."
+      delete_forever_button: => core.ref.delete_forever
+      edit_button: => core.ref.edit
+      hide_confirmation: "Are you sure you want to delete this post?"
+      restore_button: => core.ref.restore
+
+    # These translations are used in the scrubber to the right of the post stream.
+    post_scrubber:
+      now_link: Now
+      original_post_link: Original Post
+      unread_text: "{count} unread"
+      viewing_text: "{index} of {count} post|{index} of {count} posts"
+
+    # These translations are displayed between posts in the post stream.
+    post_stream:
+      discussion_renamed_old_tooltip: 'The old title was: "{old}"'
+      discussion_renamed_text: "{username} changed the title to {new}."
+      load_more_button: => core.ref.load_more
+      reply_placeholder: => core.ref.write_a_reply
+      time_lapsed_text: "{period} later"
+
+    # These translations are used by the rename discussion modal.
+    rename_discussion:
+      submit_button: => core.ref.rename
+      title: Rename Discussion
+
+    # These translations are used by the search results dropdown list.
+    search:
+      all_discussions_button: 'Search all discussions for "{query}"'
+      discussions_heading: => core.ref.discussions
+      users_heading: => core.ref.users
+
+    # These translations are used in the Settings page.
+    settings:
+      account_heading: Account
+      change_email_button: => core.ref.change_email
+      change_password_button: => core.ref.change_password
+      notifications_heading: => core.ref.notifications
+      notify_by_email_heading: => core.ref.email
+      notify_by_web_heading: Web
+      notify_discussion_renamed_label: Someone renames a discussion I started
+      privacy_disclose_online_label: Allow others to see when I am online
+      privacy_heading: Privacy
+      title: => core.ref.settings
+
+    # These translations are used in the Sign Up modal dialog.
+    sign_up:
+      dismiss_button: => core.ref.okay
+      email_placeholder: => core.ref.email
+      log_in_text: "Already have an account? <a>Log In</a>"
+      password_placeholder: => core.ref.password
+      submit_button: => core.ref.sign_up
+      title: => core.ref.sign_up
+      username_placeholder: => core.ref.username
+      welcome_text: "Welcome, {username}!"
+
+    # These translations are used in the user profile page and profile popup.
+    user:
+      avatar_remove_button: => core.ref.remove
+      avatar_upload_button: Upload
+      avatar_upload_tooltip: Upload a new avatar
+      discussions_link: => core.ref.discussions
+      in_discussion_text: "In {discussion}"
+      joined_date_text: "Joined {ago}"
+      online_text: Online
+      posts_empty_text: It looks like there are no posts here.
+      posts_link: => core.ref.posts
+      posts_load_more_button: => core.ref.load_more
+      settings_link: => core.ref.settings
+
+    # These translations are found on the user profile page (admin function).
+    user_controls:
+      button: Controls
+      delete_button: => core.ref.delete
+      delete_confirmation: "Are you sure you want to delete this user? The user's posts will NOT be deleted."
+      delete_error_message: "Deletion of user <i>{username} ({email})</i> failed"
+      delete_success_message: "User <i>{username} ({email})</i> was deleted"
+      edit_button: => core.ref.edit
+
+    # These translations are used in the alert that is shown when a new user has not confirmed their email address.
+    user_email_confirmation:
+      alert_message: => core.ref.confirmation_email_sent
+      resend_button: Resend Confirmation Email
+      sent_message: Sent
+
+  # Translations in this namespace are used by the forum and admin interfaces.
+  lib:
+
+    # These translations are displayed as tooltips for discussion badges.
+    badge:
+      hidden_tooltip: Hidden
+
+    # These translations are displayed as error messages.
+    error:
+      dependent_extensions_message: "Cannot disable {extension} until the following dependent extensions are disabled: {extensions}"
+      generic_message: "Oops! Something went wrong. Please reload the page and try again."
+      missing_dependencies_message: "Cannot enable {extension} until the following dependencies are enabled: {extensions}"
+      not_found_message: The requested resource was not found.
+      permission_denied_message: You do not have permission to do that.
+      rate_limit_exceeded_message: You're going a little too quickly. Please try again in a few seconds.
+
+    # These translations are used as suffixes when abbreviating numbers.
+    number_suffix:
+      kilo_text: K
+      mega_text: M
+
+    # These translations are used to punctuate a series of items.
+    series:
+      glue_text: ", "
+      three_text: "{first}, {second}, and {third}"
+      two_text: "{first} and {second}"
+
+    # These translations are used to modify usernames.
+    username:
+      deleted_text: "[deleted]"
+
+  # Translations in this namespace are used in views other than Flarum's normal JS client.
+  views:
+
+    # Translations in this namespace are displayed by the basic HTML content loader.
+    content:
+      javascript_disabled_message: This site is best viewed in a modern browser with JavaScript enabled.
+      load_error_message: Something went wrong while trying to load the full version of this site. Try hard-refreshing this page to fix the error.
+      loading_text: Loading...
+
+    # Translations in this namespace are displayed in the basic HTML discussion view.
+    discussion:
+      next_page_button: => core.ref.next_page
+      previous_page_button: => core.ref.previous_page
+
+    # Translations in this namespace are displayed when Flarum encounters an error.
+    error:
+      csrf_token_mismatch: You have been inactive for too long.
+      csrf_token_mismatch_return_link: Go back, to try again
+      invalid_confirmation_token: This confirmation link has already been used or is invalid.
+      not_authenticated: You do not have permission to access this page. Try again after logging in.
+      not_found: The page you requested could not be found.
+      not_found_return_link: "Return to {forum}"
+      permission_denied: You do not have permission to access this page.
+      unknown: An error occurred while trying to load this page.
+
+    # Translations in this namespace are displayed by the basic HTML discussion index.
+    index:
+      all_discussions_heading: => core.ref.all_discussions
+      next_page_button: => core.ref.next_page
+      previous_page_button: => core.ref.previous_page
+
+    # Translations in this namespace are displayed by the Log Out confirmation interface.
+    log_out:
+      log_out_button: => core.ref.log_out
+      log_out_confirmation: "Are you sure you want to log out of {forum}?"
+      title: => core.ref.log_out
+
+    # Translations in this namespace are displayed by the Reset Password interface.
+    reset_password:
+      confirm_password_label: Confirm New Password
+      new_password_label: New Password
+      submit_button: => core.ref.save_changes
+      title: => core.ref.reset_your_password
+
+  # Translations in this namespace are used in messages output by the API.
+  api:
+    invalid_username_message: "The username may only contain letters, numbers, and dashes."
+
+  # Translations in this namespace are used in emails sent by the forum.
+  email:
+
+    # These translations are used in emails sent when users register new accounts.
+    activate_account:
+      subject: Activate Your New Account
+      body: |
+        Hey {username}!
+
+        Someone (hopefully you!) has signed up to {forum} with this email address.
+
+        If this was you, simply click the following link and your account will be activated:
+        {url}
+
+        If you did not sign up, please ignore this email.
+
+    # These translations are used in emails sent when users change their email address.
+    confirm_email:
+      subject: Confirm Your New Email Address
+      body: |
+        Hey {username}!
+
+        Someone (hopefully you!) has changed their email address on {forum} to this one.
+
+        If this was you, simply click the following link and your email will be confirmed:
+        {url}
+
+        If this was not you, please ignore this email.
+
+    # These translations are used in emails sent when users ask to reset their passwords.
+    reset_password:
+      subject: => core.ref.reset_your_password
+      body: |
+        Hey {username}!
+
+        Someone (hopefully you!) has submitted a forgotten password request for your account on {forum}.
+
+        If this was you, click the following link to reset your password:
+        {url}
+
+        If you do not wish to change your password, just ignore this email and nothing will happen.
+
+    # These translations are used when testing mailing configuration
+    send_test:
+      subject: Flarum Email Test
+      body: |
+        Hey {username}!
+
+        This is a test email to confirm that your Flarum email configuration is working properly.
+
+        If this was you, this email means that your configuration works!
+
+        If this was not you, please ignore this email.
+
+  ##
+  # REUSED TRANSLATIONS - These keys should not be used directly in code!
+  ##
+
+  # Translations in this namespace are referenced by two or more unique keys.
+  ref:
+    all_discussions: All Discussions
+    change_email: Change Email
+    change_password: Change Password
+    color: Color                                 # Referenced by flarum-tags.yml
+    confirm_password: Confirm Password
+    confirmation_email_sent: "We've sent a confirmation email to {email}. If it doesn't arrive soon, check your spam folder."
+    custom_footer_text: Add HTML to be displayed at the very bottom of the page.
+    custom_footer_title: Edit Custom Footer
+    custom_header_text: "Add HTML to be displayed at the very top of the page, above Flarum's own header."
+    custom_header_title: Edit Custom Header
+    delete: Delete
+    delete_forever: Delete Forever
+    discussions: Discussions                     # Referenced by flarum-statistics.yml
+    edit: Edit
+    email: Email
+    icon: Icon
+    icon_text: "Enter the name of any <a>FontAwesome</a> icon class, <em>including</em> the <code>fas fa-</code> prefix."
+    load_more: Load More
+    log_in: Log In
+    log_out: Log Out
+    mark_all_as_read: Mark All as Read
+    next_page: Next Page
+    notifications: Notifications
+    okay: OK                                     # Referenced by flarum-tags.yml
+    password: Password
+    posts: Posts                                 # Referenced by flarum-statistics.yml
+    previous_page: Previous Page
+    remove: Remove
+    rename: Rename
+    reply: Reply                                 # Referenced by flarum-mentions.yml
+    reset_your_password: Reset Your Password
+    restore: Restore
+    save_changes: Save Changes                   # Referenced by flarum-suspend.yml, flarum-tags.yml
+    settings: Settings
+    sign_up: Sign Up
+    some_others: "{count} other|{count} others"  # Referenced by flarum-likes.yml, flarum-mentions.yml
+    start_a_discussion: Start a Discussion
+    username: Username
+    users: Users                                 # Referenced by flarum-statistics.yml
+    view: View
+    write_a_reply: Write a Reply...
+    you: You                                     # Referenced by flarum-likes.yml, flarum-mentions.yml
+
+  ##
+  # GROUP NAMES - These keys are translated at the back end.
+  ##
+
+  # Translations in this namespace are used to translate default group names.
+  group:
+    admin: Admin
+    admins: Admins
+    guest: Guest
+    guests: Guests
+    member: Member
+    members: Members
+    mod: Mod
+    mods: Mods
diff --git a/framework/core/locale/validation.yml b/framework/core/locale/validation.yml
new file mode 100644
index 000000000..55b9a5a9f
--- /dev/null
+++ b/framework/core/locale/validation.yml
@@ -0,0 +1,108 @@
+validation:
+  accepted: "The :attribute must be accepted."
+  active_url: "The :attribute is not a valid URL."
+  after: "The :attribute must be a date after :date."
+  after_or_equal: "The :attribute must be a date after or equal to :date."
+  alpha: "The :attribute may only contain letters."
+  alpha_dash: "The :attribute may only contain letters, numbers, dashes and underscores."
+  alpha_num: "The :attribute may only contain letters and numbers."
+  array: "The :attribute must be an array."
+  before: "The :attribute must be a date before :date."
+  before_or_equal: "The :attribute must be a date before or equal to :date."
+  between:
+    numeric: "The :attribute must be between :min and :max."
+    file: "The :attribute must be between :min and :max kilobytes."
+    string: "The :attribute must be between :min and :max characters."
+    array: "The :attribute must have between :min and :max items."
+  boolean: "The :attribute field must be true or false."
+  confirmed: "The :attribute confirmation does not match."
+  date: "The :attribute is not a valid date."
+  date_equals: "The :attribute must be a date equal to :date."
+  date_format: "The :attribute does not match the format :format."
+  different: "The :attribute and :other must be different."
+  digits: "The :attribute must be :digits digits."
+  digits_between: "The :attribute must be between :min and :max digits."
+  dimensions: "The :attribute has invalid image dimensions."
+  distinct: "The :attribute field has a duplicate value."
+  email: "The :attribute must be a valid email address."
+  ends_with: "The :attribute must end with one of the following: :values."
+  exists: "The selected :attribute is invalid."
+  file: "The :attribute must be a file."
+  filled: "The :attribute field must have a value."
+  gt:
+    numeric: "The :attribute must be greater than :value."
+    file: "The :attribute must be greater than :value kilobytes."
+    string: "The :attribute must be greater than :value characters."
+    array: "The :attribute must have more than :value items."
+  gte:
+    numeric: "The :attribute must be greater than or equal :value."
+    file: "The :attribute must be greater than or equal :value kilobytes."
+    string: "The :attribute must be greater than or equal :value characters."
+    array: "The :attribute must have :value items or more."
+  image: "The :attribute must be an image."
+  in: "The selected :attribute is invalid."
+  in_array: "The :attribute field does not exist in :other."
+  integer: "The :attribute must be an integer."
+  ip: "The :attribute must be a valid IP address."
+  ipv4: "The :attribute must be a valid IPv4 address."
+  ipv6: "The :attribute must be a valid IPv6 address."
+  json: "The :attribute must be a valid JSON string."
+  lt:
+    numeric: "The :attribute must be less than :value."
+    file: "The :attribute must be less than :value kilobytes."
+    string: "The :attribute must be less than :value characters."
+    array: "The :attribute must have less than :value items."
+  lte:
+    numeric: "The :attribute must be less than or equal :value."
+    file: "The :attribute must be less than or equal :value kilobytes."
+    string: "The :attribute must be less than or equal :value characters."
+    array: "The :attribute must not have more than :value items."
+  max:
+    numeric: "The :attribute may not be greater than :max."
+    file: "The :attribute may not be greater than :max kilobytes."
+    string: "The :attribute may not be greater than :max characters."
+    array: "The :attribute may not have more than :max items."
+  mimes: "The :attribute must be a file of type: :values."
+  mimetypes: "The :attribute must be a file of type: :values."
+  min:
+    numeric: "The :attribute must be at least :min."
+    file: "The :attribute must be at least :min kilobytes."
+    string: "The :attribute must be at least :min characters."
+    array: "The :attribute must have at least :min items."
+  not_in: "The selected :attribute is invalid."
+  not_regex: "The :attribute format is invalid."
+  numeric: "The :attribute must be a number."
+  password: "The password is incorrect."
+  present: "The :attribute field must be present."
+  regex: "The :attribute format is invalid."
+  required: "The :attribute field is required."
+  required_if: "The :attribute field is required when :other is :value."
+  required_unless: "The :attribute field is required unless :other is in :values."
+  required_with: "The :attribute field is required when :values is present."
+  required_with_all: "The :attribute field is required when :values are present."
+  required_without: "The :attribute field is required when :values is not present."
+  required_without_all: "The :attribute field is required when none of :values are present."
+  same: "The :attribute and :other must match."
+  size:
+    numeric: "The :attribute must be :size."
+    file: "The :attribute must be :size kilobytes."
+    string: "The :attribute must be :size characters."
+    array: "The :attribute must contain :size items."
+  starts_with: "The :attribute must start with one of the following: :values."
+  string: "The :attribute must be a string."
+  timezone: "The :attribute must be a valid zone."
+  unique: "The :attribute has already been taken."
+  uploaded: "The :attribute failed to upload."
+  url: "The :attribute format is invalid."
+  uuid: "The :attribute must be a valid UUID."
+
+  attributes:
+    username: username
+    password: password
+    email: email
+    title: title
+    content: content
+    name_singular: singular name
+    name_plural: plural name
+    tag_count_primary: number of primary tags
+    tag_count_secondary: number of secondary tags
diff --git a/framework/core/src/Locale/LocaleServiceProvider.php b/framework/core/src/Locale/LocaleServiceProvider.php
index 05ff17b2e..ba1d13eb5 100644
--- a/framework/core/src/Locale/LocaleServiceProvider.php
+++ b/framework/core/src/Locale/LocaleServiceProvider.php
@@ -57,6 +57,8 @@ class LocaleServiceProvider extends AbstractServiceProvider
 
             $translator->setFallbackLocales(['en']);
             $translator->addLoader('prefixed_yaml', new PrefixedYamlFileLoader());
+            $translator->addResource('prefixed_yaml', ['file' => __DIR__.'/../../locale/core.yml', 'prefix' => null], 'en');
+            $translator->addResource('prefixed_yaml', ['file' => __DIR__.'/../../locale/validation.yml', 'prefix' => null], 'en');
 
             return $translator;
         });
diff --git a/framework/core/tests/integration/api/discussions/CreateTest.php b/framework/core/tests/integration/api/discussions/CreateTest.php
index c0cf9c210..659c4f43d 100644
--- a/framework/core/tests/integration/api/discussions/CreateTest.php
+++ b/framework/core/tests/integration/api/discussions/CreateTest.php
@@ -61,7 +61,7 @@ class CreateTest extends TestCase
                 [
                     'status' => '422',
                     'code' => 'validation_error',
-                    'detail' => 'validation.required',
+                    'detail' => 'The content field is required.',
                     'source' => ['pointer' => '/data/attributes/content'],
                 ],
             ],
@@ -97,7 +97,7 @@ class CreateTest extends TestCase
                 [
                     'status' => '422',
                     'code' => 'validation_error',
-                    'detail' => 'validation.required',
+                    'detail' => 'The title field is required.',
                     'source' => ['pointer' => '/data/attributes/title'],
                 ],
             ],
diff --git a/framework/core/tests/integration/api/users/CreateTest.php b/framework/core/tests/integration/api/users/CreateTest.php
index c3eb38ace..6d4440a99 100644
--- a/framework/core/tests/integration/api/users/CreateTest.php
+++ b/framework/core/tests/integration/api/users/CreateTest.php
@@ -57,19 +57,19 @@ class CreateTest extends TestCase
                 [
                     'status' => '422',
                     'code' => 'validation_error',
-                    'detail' => 'validation.required',
+                    'detail' => 'The username field is required.',
                     'source' => ['pointer' => '/data/attributes/username'],
                 ],
                 [
                     'status' => '422',
                     'code' => 'validation_error',
-                    'detail' => 'validation.required',
+                    'detail' => 'The email field is required.',
                     'source' => ['pointer' => '/data/attributes/email'],
                 ],
                 [
                     'status' => '422',
                     'code' => 'validation_error',
-                    'detail' => 'validation.required',
+                    'detail' => 'The password field is required.',
                     'source' => ['pointer' => '/data/attributes/password'],
                 ],
             ],
diff --git a/framework/core/tests/integration/extenders/EventTest.php b/framework/core/tests/integration/extenders/EventTest.php
index 657e915fa..080a716bb 100644
--- a/framework/core/tests/integration/extenders/EventTest.php
+++ b/framework/core/tests/integration/extenders/EventTest.php
@@ -72,7 +72,7 @@ class EventTest extends TestCase
 
         $group = $this->buildGroup();
 
-        $this->assertEquals('core.group.admin', $group->name_singular);
+        $this->assertEquals('Admin', $group->name_singular);
     }
 
     /**
@@ -85,7 +85,7 @@ class EventTest extends TestCase
 
         $group = $this->buildGroup();
 
-        $this->assertEquals('core.group.admin', $group->name_singular);
+        $this->assertEquals('Admin', $group->name_singular);
     }
 
     /**