1154
Arab (from the Almoravid Dynasty) geographer Muhammad Al-Idrisi entered it in his map of the world as Kolyvan (today´s Tallinn).

1219
As a part of Northern Crusaders, Valdemar II of Denmark leads the Danish Fleet towards Estonia. The Danish Army defeated the Estonians in the Battle of Lindanisse. The Danes built a large fortress at Toompea Hill from which they ruled Tallinn and Northern Estonia.

In the area that now forms present-day Estonia, the first settlements occurred some 11,000 years ago, after the ice cap retreated.

13th century, first half
Estonia was incorporated into Christendom at the beginning of the 13th century, under the pressure of crusaders from Germany and Denmark.