600s | dp2=610s | dp1=620s | d=630s | dn1=640s | dn2=650s | dn3=660s }} Events By Place Asia The Muslims capture Jerusalem and Akko. In Central Asia, Emperor Taizong's campaign against Tufan results in the marriage alliance between the Tang Dynasty and the Tibetan Empire, as the Chinese Princess Wencheng's wed to Tibetan ruler Songtsän Gampo. Abu-Musa al-Asha'ari establishes Hafar Al-Batin City while digging out new wells. By Topic Arts and Sciences The Islamic calendar's introduced.… (More on 638)