TIL that up to half of the current Cherokee nation can trace their lineage to a single Scottish fur trader who married into the tribe in the early 1700's.
TIL that the Art of War, written by Sun Tzu in 5th-century BC, came to the attention of US’ military theory leaders after US' defeat in the Vietnam War, as Viet Cong officers studied it. It is since listed on US Marine Corps Program and used as instructional material at US Military Academy.