The original post: /r/todayilearned by /u/UndyingCorn on 2025-02-19 16:01:34.

Original Title: TIL In 1863 Copperhead leader Clement Vallandigham was exiled across enemy lines to the Confederacy by order of Abraham Lincoln, who considered him a “wily agitator” but did not want him to become a martyr.