” 1507—Portuguese take Muscat. ” 1513—Portuguese under Abulquerque are repulsed at Aden. Visit Mokha and the Persian Gulf. ” 1516—Suleiman by order of Mameluke Sultan attacks Aden and is repulsed. ” 1538—Suleiman the Magnificent sends a fleet and takes Aden by treachery. Arab garrison butchered. ” 1540—Beginning of Turkish rule in Yemen. ” 1550—Arabs hand over Aden to the Portuguese. ” 1551—Aden recaptured by Peri Pasha. ” 1624-1741—Imams established rule over all Oman with capital at Rastak; then at Muscat. ” 1609—First visit to Aden by English captains. ” 1618—English establish factories at Mokha. ” 1622—Portuguese expelled from Bahrein and Arab coast by the Persians. ” 1630—Arabs drive out Turks from Yemen and _Imams_ take the throne at Sana. ” 1740-65—Dutch East India Company in Persian Gulf and Red Sea ports. ” 1765—English East India Company in Persian Gulf and Red Sea ports. ” 1735—Abdali Sultan of Lahaj takes Aden. ” 1741—Ahmed bin Said drives out Portuguese from Muscat and founds Dynasty of Imams, anew. ” 1765—Mohammed bin Abdul Wahab dies and his political associate Mohammed bin Saud propagates Wahabiism in Arabia. ” 1780—Spread of Wahabi doctrine over all of Central Arabia. ” 1801—Wahabis conquer Bahrein and hold it for nine years. ” 1803—Abd-ul-Aziz the Wahabi chief assassinated by a Persian fanatic. ” 1803—Wahabis take Mecca and lay seige to Jiddah. ” 1804—Wahabis take Medina. ” 1804—Said bin Sultan ruler of Oman and Zanzibar. ” 1809—Aden visited by Captain Haines of British Navy. ” 1818—Ibrahim Pasha captures Wahabi capital and sends Amir in chains to Constantinople where he is beheaded. ” 1805-1820—British suppress piracy in Persian Gulf. ” 1820—Son of Amir, Turki, proclaimed Sultan of Nejd and Oman coast. ” 1821—British make treaty with tribes on Oman coast called the “Trucial League.” ” 1820-1847—British treaties with Bahrein chiefs to suppress slave-trade and piracy. ” 1831—Turki, ruler of Nejd, murdered. ” 1832—Feysul bin Turki, succeeds him. ” l835—Abdullah bin Rashid becomes a powerful chief in Jebel Shammar. ” 1835—Aden again visited by British to avenge cruelty to sailors shipwrecked off its coast. ” 1839—Aden bombarded by British fleet and taken. Treaties made with surrounding tribes. ” 1840-1847—Aden attacked by Arabs. ” 1846—Tilal bin Abdullah bin Rashid succeeds to rulership of Jebel Shammar and becomes independent of Wahabi power. ” 1851-1856—Abdullah bin Mutalib Sherif of Mecca.