Historical Events in October 1582

  • M 1
  • T 2
  • W 3
  • T 4
  • S 5
  • S 6
  • S 7
  • S 8
  • S 9
  • S 10
  • S 11
  • S 12
  • S 13
  • S 14
  • F 15
  • S 16
  • S 17
  • M 18
  • T 19
  • W 20
  • T 21
  • F 22
  • S 23
  • S 24
  • M 25
  • T 26
  • W 27
  • T 28
  • F 29
  • S 30
  • S 31
  • Oct 4 Last Julian calender day in Spain/Portugal/pontifical states
  • Oct 5 Gregorian calendar introduced in Italy and other Catholic countries
  • Oct 15 Many Catholic countries switch to Gregorian calendar, skip 10 days