It's not entirely clear why the Yeomen Warders are called Beefeaters. The most popular explanation seems to be that they were regularly given a very large portion of beef as part of their pay and rations. Or maybe they had something against Fisheaters.
Felt tip pen study. If you call your class drawing a "study," you're an artist. If you call it a "drawing," you get kicked out of class. I only do studies. While learning about Shakespeare.