Events

By Place

Byzantine Empire

• August 20 — Battle of Yarmuk: Khalid ibn al-Walid's victory against the Byzantine army results in the Byzantine Empire losing Roman Syria to the Muslim Arabs.

Persian Empire

• Battle of al-Qādisiyyah: The Sassanid Persian Empire is conquered by the Muslim Arabs.

Europe

• Rothari marries Queen Gundeparga, and becomes king of the Lombards.

Asia

• The city of Basra, Iraq is founded on a canal by Caliph Omar.
• The Xumi Pagoda of Zhengding, China, is built during the reign of Emperor Taizong of Tang.

Literature

• The historical texts of the Book of Northern Qi, Book of Chen, and Book of Sui are compiled in China during the Tang Dynasty.

Births

Deaths

• April 4 — Isidore of Seville, scholar
• Arioald, king of the Lombards
• Empress Zhangsun
• Sisenand, Visigothic King of Hispania