The U.S.S. Monitor, the famous Union ironclad warship serving at the Battle of Hampton Roads, was the first U.S. ship to have a flush toilet below the waterline.
http://agapemodels.com/?p=766
The Bucknellian • September 22, 2010 • https://bucknellian.net/1617/uncategorized/fun-fact-week-5-october-1/
The U.S.S. Monitor, the famous Union ironclad warship serving at the Battle of Hampton Roads, was the first U.S. ship to have a flush toilet below the waterline.
http://agapemodels.com/?p=766