Type anything you would like to put on a web page. Make sure each paragraph is at least two sentences long. Returning to the Minimum Netscape HTML Document in Netscape, press the Reload button. HTML requires that you indicate what text is a paragraph just as you indicated what text is the document title. Add the paragraph start and end tags to your document and view it again.
Many pages use it to indicate the end of the paragraph.
This is an error which has moved through the web like a virus. Don't let it get you, too. But, it is easier to just use it rather than guessing where it can be omitted.