15th August » Arab–Byzantine wars: The Battle of Yarmouk between Byzantine Empire and Rashidun Caliphate begins.
20th August » Battle of Yarmouk: Arab people known as Arab forces led by Khalid ibn al-Walid take control of Syria and Palestine away from the Byzantine Empire, marking the first great wave of Muslim conquests and the rapid advance of Islam outside Arabian Peninsula e.
19th November » The Rashidun Caliphate defeated the Sassanian Empire at the Battle of Qadisiya in Iraq.
Famous Deaths in History for 636
4th April » Isidore of Seville, Spanish archbishop and saint (b. 560)