•  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  

Pope Gregory XIII reformed the Julian calendar to the Gregorian calendar.

Pope Gregory XIII  reformed the Julian calendar to the Gregorian calendar.  October 4, 1582, was directly followed by October 15.

AM Year
5628
GC_Era
AD
GC_Year
1582