1918 Event Russia adopts Gregorian calender (becomes Feb 14) 1752 Event U.S. and England adopts Gregorian calender (no Sept 3-Sept 13th) 1752 Event U.S. adopts Gregorian calender (becomes Sept 14) 1752 Event Last Julian calender day in U.S. and England (no Sept 3-Sept 13th) 1582 Event Last Julian calender day in Spain/Portugal/pontifical states 1492 Event Columbus' discovers America (Oct 12, 1492 Julian calender)
