1821

The year 1821 started on Monday, January 1, and ended on Monday, December 31.

Calendar with holidays
Holidays:
 * New Year's Day: Monday, January 1
 * Epiphany: Saturday, January 6
 * Valentine's Day: Wednesday, February 14
 * Inauguration Day: Monday, March 5
 * Mardi Gras: Tuesday, March 6
 * Ash Wednesday: Wednesday, March 7
 * Saint Patrick's Day: Saturday, March 17
 * April Fools' Day: Sunday, April 1
 * Palm Sunday: Sunday, April 15
 * Good Friday: Friday, April 20
 * Easter: Sunday, April 22
 * Independence Day: Wednesday, July 4
 * Halloween: Wednesday, October 31
 * Christmas Eve: Monday, December 24
 * Christmas: Tuesday, December 25
 * New Year's Eve: Monday, December 31