# Add a Blog Post Publication Date

In this lesson, you will learn how to add a new date property to blog posts.

## Outcome

Content editors can specify the publication date for a blog post. Blog posts are displayed with the most recent publication date appearing first.

## Takeaway

Learn how to:

* Add a new property to a Document Type
* Edit a Template to display the new property
* Sort a list of items by a new property

## Steps - Part One

1. In the **Settings** section, expand **Document Types**.
2. Click on *Blogpost*. This is the Document Type that defines the fields for this type of page.

   ![Blogpost Document Type](https://3872888104-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgEH4FChbCn7eDDqREvdE%2Fuploads%2Fgit-blob-9f05ed538772f5310c14555d3f2f98cf6abf60cf%2FBlogpost-Document-Type-v10.png?alt=media)
3. The Document Type contains 2 groups: *Content* and *Navigation & SEO*.
   * Select **Add property** at the bottom of the *Content* group.
   * This opens the **Property Editor** dialog window.
4. Give the property a name: *Publication Date*.
5. Give the property a description: *The date of the blog post. This is the date used to display the most recent posts first.*.
   * Always try to add a meaningful description to help your editors.
6. Select **Add editor** to specify what type of data is being stored.
   * We need a standard date, so click on the **Date Picker** icon.
7. In the validation section, enable the field to make it mandatory.
8. Submit to close the dialog and save the property.

   ![Property settings](https://3872888104-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgEH4FChbCn7eDDqREvdE%2Fuploads%2Fgit-blob-1fb022d90dd7389fc833c3bda5760419f9db712d%2Fproperty-settings-v10.png?alt=media)
9. Select the **Reorder** option near the top-right of the window, then drag the new property to be after *Page Title*.
   * A logical order to your properties will make things easier for your editors.
10. Click **I am done reordering** near the top-right of the window and select **Save** the Document Type - a confirmation message should appear confirming that the Document Type was saved.