1064

By place

Europe

• Summer - King Ferdinand I conquers more territory in modern-day Portugal and captures Coimbra. He appoints Sisnando Davides to reorganise the economy and administer the lands encircling the city.
• European warriors go to Spain, to participate in the siege of Barbastro. This expedition is sanctioned by Pope Alexander II – and is now regarded as an early form of Crusade.
• Harold Godwinson, Earl of Wessex, is shipwrecked on the shores of Ponthieu. He is captured by Count Guy I who takes him as hostage to his castle of Beaurian.
• Duke William I demands the release of Harold Godwinson from Guy I. Harold must swear an oath to aid William to the throne of England.
• Kings Harald Hardrada of Norway and Sweyn II of Denmark agree to a peace agreement. Harald turns his attentions to England who believes he has a right to the throne.

  Seljuk Empire

• April 27 - Alp Arslan, succeeds to the throne as sultan of the Seljuk Empire. He becomes sole ruler of Persia from the river Oxus to the Tigris.
• The Seljuk Turks under Alp Arslan invade Anatolia, and capture Ani after a siege of 25-days. He sacks the city and slaughters its citizens.
• Badr al-Jamali, Fatimid governor of Syria, tries to engineer a pro-Fatimid coup in Aleppo; but the rebellion is suppressed by Musa Yabgu.

  Asia

• King Bagrat IV of Georgia captures the fortress city of Samshvilde, the capital of the neighboring Tashir-Dzoraget.

  Mesoamerica

• January 4 - The Aztecs migrate from Aztlán to the southern lands in central Mexico.

  By topic

Religion

• Winter - Great German Pilgrimage: Archbishop Siegfried I of Mainz leads an pilgrimage to Jerusalem.
• Michaelsberg Abbey at Siegburg is founded by Anno II, archbishop of Cologne.
• Construction of the Piazza dei Miracoli at Pisa in Tuscany begins.

  Volcanology

• Sunset Crater Volcano first erupts