This is a sample page. It differs from a blog post because it stays in one place and appears in your site navigation (in most themes). Most people start with an About page that introduces them to potential visitors. It might look something like this:

Hi! By day I work as a bicycle courier; at night I make the best drinks in a cosy bar, and this is my website. I live in Trenčín, have a hamster named Igor, and sometimes go on dates with my city too (instead of going to a bar, I might simply take a walk).

… or something like this:

XYZ Doohickey was founded in 1971 and has provided quality services to the public ever since. Located in Gotham City, XYZ employs more than 2,000 people and does all kinds of wonderful things for the Gotham community.

As a new WordPress user, you can go to your dashboard, delete this page and create new pages for your content. Have fun!