1070s

The 1070s was a decade that began on 1 January 1070 and ended on 31 December 1079. It is distinct from the decade known as the 108th decade which began on January 1, 1071 and ended on December 31, 1080.

• 1071 Byzantine Empire loses Battle of Manzikert to Turkish army.
• 1072 Normans conquer Palermo in Sicily
• 1073 Japan changes emperors
• 1078 Romanesque church begun at Santiago de Compostela, Galicia, Spain