1680
- Harcourt Brown became interested in the history of science, and his first book, written while he was at Columbia, was "Scientific Organizations in Seventeen-century France (1620-1680)."Brown, Harcourt
- This supported an Indian tradition recorded by Reverend John Danforth in 1680 that men from a strange land had come up the river at an earlier time and had slain their sachem.Delabarre, Edmund B.