This is from the first calendar I made, on the occasion of my friend John's 50th birthday. I turned 50 that year, too. One of the things you find out when you get old is that you've had your friends for a long time. And by then, they more or less think the same things are hilarious that you do.
"The Ambassadors of Agamemnon Visiting Achilles," by Jean-Auguste-Dominique Ingres, 1801