Circa 1892 B. C.—Birth of Ishmael. ” 1773 ” —Death of Ishmael. ” 992 ” —Bilkis, queen of Yemen (Sheba) visits Solomon. ” 700 ” —Amalgamation of Cushite and Sabean clans in Yemen. ” 754 ” —All Yemen and Oman under rule of Yaarŭb. ” 588 ” —First Jewish settlements in Arabia. A. D. 33—Arabians present at Pentecost. ” 37—The Apostle Paul goes to Arabia. ” 60—Second Jewish immigration into Arabia. ” 105—Roman Emperor Trajan under his general Palma subdues Northwestern Arabia. ” 120—Destruction of great dam at Marib and the beginning of Arab migrations northward. ” 297—Famine in Western Arabia. Migrations eastward. ” 326—Nearchus, admiral of Alexander, surveys the Persian Gulf. ” 325—Nicene Council—Arabians present. ” 342—Christianity already extending in Northern Arabia. Churches built in Yemen. ” 372—Mavia, queen of North Arabia, converted to Christianity. ” 525—Abyssinian invasion of Yemen. ” 561—Mohammed born at Mecca. ” 575—Persians under Anosharwan expel the Abyssinians from Yemen. ” 595—Mohammed marries Khadijah. ” 595—Yemen passes under Persian Rule. ” 610—Mohammed begins his prophetic career. ” 622—(A.H. 1)—Mohammed flees from Mecca to Medina. The era of the _Hegira_. (See end of Table.) ” 623—Battle of Bedr. ” 624—Battle of Ohod. ” 630—Mecca overcome. Embassy to Oman, etc. ” 632—Death of Mohammed. Abubekr caliph. All Arabia subjugated by force of arms. ” 634—Omar caliph. Expulsion of Jews and Christians from Arabia. ” 638—Kufa and Busrah founded. ” 644—Othman caliph. ” 655—Dissensions regarding caliphate. Medina attacked. Ali chosen caliph. ” 656—Battle of the Camel. Capital transferred to Kufa. ” 661—Ali assassinated. Hassan becomes caliph. ” 750—Beginning of Abbaside Caliphate (Bagdad). ” 754—Mansur. ” 786—Haroun el Rashid. ” 809—Amin. ” 813—Mamun. ” 833—Motasim. ” 847—Motawakkel. ” 889—Arise of Carmathian sect. ” 905—Yemen comes under Karamite caliphs. ” 932—Rebellion in Yemen. It becomes independent under _Imams_ of Sana as rulers. ” 930—Carmathians take Mecca and carry away the black-stone to Katif. ” 1055—Togrul Beg at Bagdad. ” 1096-1272—The Crusades. Arabia in touch with European civilization through its bands of warriors. ” 1173—Yemen subdued by sultans of Egypt. ” 1240—Rise of Ottoman Turks. ” 1258—Fall of Bagdad. ” 1325—Yemen again independent. ” 1454—Imams of Yemen take Aden and fortify it. ” 1503—Portuguese under Ludovico Barthema, make voyages on Arabian coast and visit Aden and Muscat.