AD 643: Taizong commissions artist Yan Liben to paint the life-size portraits of 24 government officials in the Lingyan Pavilion, to commemorate their service and contributions to the founding of the Tang dynasty.
AD 645: Alexandria revolts against Arab rule, at the appearance of a Byzantine fleet of 300 ships, and Byzantine forces recapture the city. Abdullah ibn Sa'ad, Arab governor of Egypt, mounts an assault and retakes it. He begins building a Muslim fleet.
AD 646: Xuanzang completes his book Great Tang Records on the Western Regions, which later becomes one of the primary sources for the study of medieval Central Asia and India.