1090s

The 1090s was the decade that started on January 1, 1090, and ended on December 31, 1099. It is distinct from the decade known as the 110th decade which began on January 1, 1091 and ended on December 31, 1100.

 Events 
 1090 - Béjaïa becomes the capital of the Hammadid Dynasty in Algeria.
 1091 - King William II of England invades Normandy.
 1093 - Sviatopolk II becomes Grand Prince of Kiev and ruler of Kievan Rus'.
 1094 - El Cid becomes ruler of Valencia, Spain.
 1095-1099 - The First Crusade