An archive template lists all posts matching specific criteria in chronological order from newest (at top) to oldest (at bottom).
When you publish a new blog post, it is displayed at the top of your main blog page, pushing your older posts down the page. As more posts are published, old posts keep moving down the page until they no longer appear on the main blog page.
These older posts are still available if you click through pages of older posts, or if you click on an archive page link. For example, all posts in Category A are also available in the Category A archive.
In your WordPress site, you’ll have a few different types of archive pages available, including: