1123

Millennium:	2nd millennium
Centuries:	11th century – 12th century – 13th century
Decades:	1090s  1100s  1110s  – 1120s –  1130s  1140s  1150s
Years:	1120 1121 1122 – 1123 – 1124 1125 1126

Events

• 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.
• St Bartholomew's Hospital (Barts) founded in London, England.
• The Pactum Warmundi is established between the Republic of Venice and the Kingdom of Jerusalem.

Births

• Minamoto no Yoshitomo, Japanese general (d. 1160)
• Leonardo Fibonacci, Mathematician born (d. 1209)

Deaths

• August 29 — Eystein I of Norway (b. around 1088)
• Wanyan Aguda, chieftain of the Jurchen Wanyan tribe (b. 1068)
• Peter of Pappacarbone