On this day in history
September 12
ChristianScience
Observed on September 12, 2026
- Rosh HashanahJewish
Rosh Hashanah, the Jewish New Year, opening the ten days of repentance.
- 1362 CEChristian · died
Pope Innocent VI, fifth of the Avignon popes and a noted reformer of church administration, died at Avignon.
- 1665 CEChristian · died
Jean Bolland, the Flemish Jesuit hagiographer who launched the Acta Sanctorum and gave his name to the Bollandists, died at Antwerp.
- 1690 CEChristian · born
Peter Dens, the Flemish Catholic theologian whose Theologia moralis et dogmatica became a widely used seminary textbook, was born at Boom near Antwerp.
- 1958 CEScience · discovered
Jack Kilby of Texas Instruments demonstrated a working circuit with its components built into a single piece of semiconductor, the first integrated circuit and a foundation of modern electronics.