1100

Millennium:	2nd millennium
Centuries:	10th century – 11th century – 12th century
Decades:	1070s 1080s 1090s – 1100s – 1110s 1120s 1130s
Years:	1097 1098 1099 – 1100 – 1101 1102 1103

1100 by topic
Lists of leaders
State leaders
Birth and death categories
Births – Deaths
Establishments and disestablishments categories
Establishments – Disestablishments

Eastern Hemisphere in 1100 AD.

Events

December 25 – Baldwin I becomes King of Jerusalem.
August 5—Henry I becomes King of England.
King Henry I proclaims the Charter of Liberties, one of the first examples of a constitution.
Baldwin of Bourcq becomes Count of Edessa.
Dagobert of Pisa becomes Latin Patriarch of Jerusalem.
Bohemund I of Antioch is captured by the Danishmends at the Battle of Melitene, leaving Tancred as regent of the Principality of Antioch.
The cities of Kalmar, Kungälv, and Varberg, Sweden are chartered.
In Iceland, the Althing decides that the laws should be transferred to a written form.
Checkers is invented (approximate date).
The Ancient Pueblo Peoples culture rises (approximate date).
Oraibi becomes and remains the first and oldest populated settlement in the USA and what is now Arizona.
The city of Cusco, Peru is founded.
The Liao Dynasty crushes the Zubu and takes their khan prisoner.
Song Dynasty China's population reaches roughly 100 million.
In the Song Dynasty capital of Kaifeng, the number of registered people within the walls is 1,050,000; the army stationed there boosts the overall populace to some 1.4 million people.
Genoa, Venice and Pisa gain trading privileges in return for their service in the Crusades.
Emperor Huizong of Song starts to rule in China.