What are pages in wordpress?

Question

WordPress

I wanted to make just a single page website with posts. I didn’t need a section with contacts or a main page - you just go to the site, and you have a tape with entries in front of you. All.
In the "pages" section, I sequentially deleted the page with contacts (I see that this section disappeared on the site), then I sequentially began to delete all the other pages ... Now I have zero pages in the "pages" section, and the site with a couple of entries is displayed on it (cache cleared). I can't figure out how? I deleted everything, why do I have something displayed at all?
I have absolutely no idea what pages are in wordpress.
If I just want a one-page feed with posts + a cloud of tags (well, inserting a widget is easy, that's not the question), what should I do with the pages?

Answer 1

Wordpress is originally a blog. It has blog posts and pages. Even if there is no page, blog entries will be displayed on the main page.

Answer 2

You now have posts set up on the main page! There must be a page. Change in the settings:
Settings-> Reading.
Pages are static, posts are dynamic. Posts with categories and tags, just like in blogs.
But if you have records, you can still open them separately.