ocr: From the 9th century AD the Zaydi dynasty ruled Yemen, until their defeat by the Uttoman Turks in 1517. The Turks were expelled by the Zaydi Imams in 1636. 01839 Britain occupies Aden. 1918 Yemen secures independence. la 1937 Aden made a Crown Colony, the hinterland a Protectorate. la 1962 Army coup. Imam deposed and Yemen Arab Republic (YAR) declared in the North. la 1962-1970 Northern civil war between royalists and republicans. la 1963 Aden and Frotectorate united to form Federation of South Arabia. lE 1967 British troops leave Aden. la 1970 South Yemen: renamed the People's Democratic Repu ...
