On This Day

What Happened in January 1584

Historical Events

  • Jan 7 Last day of the Julian calendar in Bohemia & Holy Roman empire

Gregory Conquers Julius CaesarGregory Conquers Julius Caesar

Jan 17 Bohemia adopts Gregorian calendar

Read Article
Pope Gregory XIII with the calendar that was to make his name
Pope Gregory XIII with the calendar that was to make his name
Read Article
  • Jan 22 Parts of Switzerland adopt Gregorian calendar (& parts in 1812)

Famous Birthdays


Person of interestFrederick Henry

Jan 29 Frederick Henry, Prince of Orange and stadtholder of Holland, Zeeland, Utrecht, Guelders, and Overijssel (1625-47), born in Delft, Dutch Republic (d. 1647)

Prince of Orange Frederick Henry
Prince of Orange
Frederick Henry

Famous Deaths

  • Jan 4 Tobias Stimmer, Swiss painter (Strasbourg astronomical clock), dies at 44
  • Jan 30 Jonker Wigbold van Ewsum, mister of Nienoord, dies in battle
  • Jan 30 Pieter Jansz Pourbus, Flemish painter, dies