1173
| 1173 • The construction of a campanile which will become the Leaning Tower of Pisa begins. |
1227
Apr 7
Age: 54y
| 1227 • Livonian Crusade: The Livonian Brothers of the Sword in alliance with Germans of Riga and its bishop, Albert, cross the sea ice from mainland Estonia and attack the island of Saaremaa, home of the Oeselians. After the surrender of two major strongholds, Muhu (following the Battle of Muhu) and Valjala, the Oeselians formally accept Christianity. |