January 16 - Vermont declares its independence from New York becoming an independent country, a status it retained until it joined the United States as the 14th state in 1791
The code duello is adopted at the Clonmell Summer Assizes as the form for pistol duels in Ireland. It is quickly denounced and widely adopted throughout the English-speaking world.
... explorer
Robert Edwin Peary, (1856-1920), first man to reach the North Pole
Auguste Piccard, (1884-1962), physicist and explorer
Jacques Piccard[?], (born 1922), undersea ...