This is an example page. It’s different from a blog post because it will stay in one place and will show up in your site navigation (in most themes). Most people start with an About page that introduces them to potential site visitors. It might say something like this:

…or something like this:

The XYZ Company was founded in 1971, and has been providing quality to the public ever since. Located in Gotham City.

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