he 12th century, and were known as the Crusader state of the Principality of Antioch. The area was also threatened by Shi'a extremists known as Assassins (Hassassin). In 1260, the Mongols arrived, led by Hulegu with an army 100,000 strong, destroying cities and irrigation works. Aleppo fell in January 1260, and Damascus in March, but then Hulegu needed to break off his attack to return to China to deal with a succession dispute.
The command of the remaining Mongol troops was placed under Kitbuqa, a Christian Mongol. A few months later, the Mamluks arrived with an army from Egypt, and defeated the Mongols in the Battle of Ain Jalut, in Galilee. In addition to the sultanate's capital in Cairo, the Mamluk leader, Baibars, made Damascus a provincial capital, with the cities linked by a mail service that traveled by both horses and carrier pigeons. When Baibars died, his successor was overthrown, and power was taken by Qalawun. In the meantime, an emir named Sunqur al-Ashqar had tried to declare himself ruler of Damascus, but he was defeated by Qalawun on 21 June 1280, and fled to northern Syria.
Al-Ashqar, who had married a Mongol woman, appealed for help from the Mongols, and in 1281, they arrived with an army of 50,000 Mongols, and 30,000 Armenian, Georgian, and Turkish auxiliaries, along with Al-Ashqar's rebel force. The Mongols of the Ilkhanate took the city, but Qalawun arrived with a Mamluk force, persuaded Al-Ashqar to switch sides and join him, and they fought against the Mongols on 29 October 1281, in the Second Battle of Homs, a close battle that resulted in the death of the majority of the combatants but was finally won by the Mamluks.
In 1400, Timur Lenk, or Tamerlane, invaded Syria, sacked Aleppo and captured Damascus after defeating the Mamluk army. The city's inhabitants were massacred, except for the artisans, who were deported to Samarkand. It was during the conquests of Timur that the indigenous Christian population of Syria began