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The 1120s decade ran from January 1, 1120, to December 31, 1129.

[edit] Events and trends

• Romanesque sculptor Gislebertus active at Autun, Burgundy, France.
• Chinese government produces world's first paper money.
• 1121
  • Council of Soissons condemns Pierre Abélard's work.
• 1122
  • Resolution of Investiture Controversy in the Concordat of Worms.
  • Pierre Abélard writes Sic et Non.
• 1123
  • First Council of the Lateran confirms Concordat of Worms and demands that priests remain celibate.
  • End of the reign of Emperor Toba, emperor of Japan.
  • Emperor Sutoku ascends to the throne of Japan.
• 1124
  • Honorius II is elected pope.
• 1128
  • Geoffrey of Anjou marries Matilda, daughter of Henry I of England.
  • Afonso I of Portugal defeats his mother and her lover at the Battle of São Mamede, becoming de facto independent ruler of Portugal.
• 1129
  • Council of Troyes confirms the Order of the Knights Templar.
  • Emperor Toba, emperor of Japan, begins his cloistered rule.