1582

The year 1582 started on Monday, January 1 (in the Julian calendar), and ended on Friday, December 31 (in the Gregorian calendar). On Friday, October 15, the Gregorian calendar was introduced, with the preceding day being Thursday, October 4, in the Julian calendar.

Calendar with holidays
Holidays:
 * New Year's Day: Monday, January 1 (Julian calendar)
 * Epiphany: Saturday, January 6 (Julian calendar)
 * Valentine's Day: Wednesday, February 14 (Julian calendar)
 * Mardi Gras: Tuesday, February 27 (Julian calendar)
 * Ash Wednesday: Wednesday, February 28 (Julian calendar)
 * Saint Patrick's Day: Saturday, March 17 (Julian calendar)
 * Palm Sunday: Sunday, April 8 (Julian calendar)
 * Good Friday: Friday, April 13 (Julian calendar)
 * Easter: Sunday, April 15 (Julian calendar)
 * Halloween: Sunday, October 31 (Gregorian calendar)
 * Christmas Eve: Friday, December 24 (Gregorian calendar)
 * Christmas: Saturday, December 25 (Gregorian calendar)
 * New Year's Eve: Friday, December 31 (Gregorian calendar)