- Apr 1 French law rules the use of intention
Beethoven's 2nd Symphony
Apr 5 1st performance of Ludwig van Beethoven's 2nd Symphony in D, conducted by the composer, in Vienna
- Apr 26 Meteorites fall in L'Aigle, France
Louisiana Purchase Treaty
Apr 30 Chancellor Robert Livingston and James Monroe sign Louisiana Purchase Treaty in Paris at a cost of 15 million dollars, doubles the size of the USA
Admirals
Aviators
Gangsters
Generals
Industrialists
Suffragists