mathematics book, including rules for computing with zero. Education The Sharia enjoins women as well as men to obtain secular and religious educations. It forbids eating pork, domesticated donkey, and other flesh denied to Jews by Mosaic law (approximate date). Religion Muhammad's letters to world leaders explain the principles of the new monotheistic Muslim faith, as they will be contained in the Quran. Marutha of Tikrit is consecrated Maphrian of the East in the Syriac Orthodox Church. Births July 21 – Gao Zong, emperor of the Tang dynasty (d. 683) John Maron, Syriac monk and patriarch (d. 707) Approximate date Benedict Biscop, Anglo-Saxon abbot (d. 690) Gertrude of Nivelles, Austrasian abbess (d. 659) Deaths January 22 – Anastasius of Persia, monk February 28 – Khosrow II, king of the Persian Empire April 15 – Empress Suiko of Japan June 3 – Liang Shidu, rebel leader Babai the Great, church father and theologian Du Yan, chancellor of the Tang dynasty Kavadh II, king of the Sasanian Empire Li Dashi, Chinese official and historian (b. 570) Shirin, wife of Khosrow II (approximate date) Suibne Menn, High King of Ireland Theodelinda, queen of the Lombards Tong Yabghu Qaghan, ruler of the Göktürks References Sources