"football" as the third definition under "pigskin". I don't know what regulations now call for.

Well, Cecil says they never *were made of pigskin. It was a pig bladder. They switched to rubber years ago. It's probably some synthetic any more.

the name of the first submarine Would that be the Turtle?

http://www.bowfin.org/ftp/subsci/ppt_html/turtle/sld002.htm

http://www.mayflowerfamilies.com/a_1776_submarine.htm

CSS Hunley, indeed!