Mar 01 Pennsylvania becomes first US state to abolish slavery (for new-borns only)

Mar 01 Pennsylvania becomes the first American state to abolish slavery

Mar 26 The first British Sunday newspaper appears (British Gazette &Sunday Monitor)

Aug 16 British decisively defeat Americans in Battle of Camden, SC

Sep 23 British MAJ John Andre was apprehended as a Spy, near Tarrytown, NY

Sep 21 Benedict Arnold gives British Major Andr‚ plans to West Point

Sep 24 Benedict Arnold escapes to the British after his attempt to betray West Point.

Feb 01 British Major John Graves Simcoe leads 200 of his Rangers in a foray into New Jersey in the American Revolutionary War

Nov 20 Britain declares war on Holland

May 19 About midday, near-total darkness descends on much of New England to this day its cause is still unexplained

May 04 Charles Bunbury on Diomed wins first Epsom Derby

May 12 Charleston SC falls to the British (Revolutionary War)

May 04 American Academy of Arts &Science founded

May 02 William Herschel discovers first binary star, Xi Ursae Majoris

May 05 2nd oldest learned society in US (American Academy of Arts & Sciences) forms

Jan 04 Snowstorm hit Washington's army at Morristown New Jersey

Jan 03 Danish national anthem "Kong Kristian...," first sung

Jan 03 Danish national anthem "Kong Kristian...," first sung

Jan 04 Snowstorm hit Washington's army at Morristown New Jersey

Jan 15 Continental Congress establishes court of appeals

Jan 16 Battle at Cape St Vincent Admiral Rodney beats Spanish fleet

Oct 07 British defeated by American militia near Kings Mountain, SC

Oct 10 Great Hurricane of 1780 kills 20,000 to 30,000 in Caribbean

Oct 02 John Andre British major, hanged by Americans (spied with B Arnold), dies at 30