April 21st (1809) was a Friday. It's the 110th day of the year (111th in leap years) in the Gregorian calendar. There are 255 days left to the end of the year.
Historical Events for 21st April, 1809
» Two Austrian army corps are driven from Landshut by a First French Empire army led by Napoleon I of France as two French corps to the north hold off the main Austrian army on the first day of the Battle of Eckmühl.