These diplomatic relations were contemporaneous with the maritime expansion of the Islamic world into the Indian Ocean and as far as East Asia after the founding of Baghdad in 762. After the capital was changed from Damascus to Baghdad, ships begin to sail from Siraf, the port of Basra, to India, the Malaccan Straits and South China. Canton, or Khanfu in Arabic, a port in South China, counted among its population of 200,000, merchants from Muslims regions.[4]