Year 1784 (MDCCLXXXIV) was a leap year starting on Thursday (link will display the full calendar) of the Gregorian calendar (or a leap year starting on Monday of the 11-day slower Julian calendar).
Events of 1784
January - June
July - December
Undated
Births
Unknown dates
- See also Category: 1784 births.
Deaths
- July 1 - Wilhelm Friedemann Bach, German composer (b. 1710)
- July 31 - Denis Diderot, French philosopher and encyclopedist (b. 1713)
- August 4 - Giovanni Battista Martini, Italian musician (b. 1706)
- August 10 - Allan Ramsay, Scottish painter (b. 1713)
- August 14 - Nathaniel Hone, Irish-born painter (b. 1718)
- August 28 - Junípero Serra, Spanish Franciscan missionary (b. 1713)
- September 4 - César-François Cassini de Thury, French astronomer (b. 1714)
- September 8 - Ann Lee, American religious leader (b. 1736)
- December 4 - Wiseman Claget, English classical scholar (b. 1721)
- December 13 - Samuel Johnson, English writer and lexicographer (b. 1709)
- December 25 - Yosa Buson, Japanese poet and painter (b. 1716)
- December 26 - Seth Warner, American revolutionary leader (b. 1743)
Unknown dates
- Le Quy Don, Vietnamese philosopher, poet, encyclopedist, and government official (b. 1726)
- See also Category: 1784 deaths.
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