WordPress an ClassicPress help you organizing your posts. This is what makes a post different from a (more or less static) page.
WordPress and ClassicPress automatically create several archive pages for you:
Author Archive Pages
example.com/blog/author/johndoe which lists all articles written by John Doe
Category Archive Pages
example.com/blog/category/flowers which lists all articles in the category Flowers
Tag Archive Pages
example.com/blog/tag/rose which lists all articles tagged with Rose
Daily Archive Pages
example.com/blog/2023/01/01 which lists all articles written on January 1 in 2023
Monthly Archive Pages
example.com/blog/2023/01 which lists all articles written in January 2023
Yearly Archive Pages
example.com/blog/2023 which lists all articles written in 2023
The problem with archive pages
The problem with this automatically generated archive pages is that you can’t turn them off. WordPress and ClassicPress always generate them. Even if you do not want to use these Pages and you nowhere link to them, they still exist and they can be accessed by their automated generated URL.
The Smart Archive Page Remove plugin adds a new item ‘Archive Pages’ in the ‘Settings’ section of your Admin Dashboard where you can remove the archives you do not need. Removed archive pages are no longer accessible and cause a 404 page not found error. Of course they can be restored anytime.