Weekly Challenge - 4 Part Post - Part 1

Alrighty fellow nerd clansmen, here is the first part to this 4 day post challenge. Read the directions below and be sure to spread the word and come back every day so we can gather an interesting conclusion.

What I know?

In this post you will submit in the comment section something that you know.

For example, something that I know is, "I look good in an Elvis mask" or "My receding hairline looks like Florida and the Gulf of Mexico".

You just need to post your facts of what you know.

Make your post a complete sentence. It won't work if they are not complete sentences.