Ho Chi Minh city was known as Sai Gon for long time from 1698 until 1976. Before the 17th century, this was the land of Khmer People. In 1658, King of Kmer People gave this land to Vietnamese and 40 years later, this started with the name Sai Gon. In 1859, French attached Gia Dinh City – Next to Sai Gon . In 1868, Tu Duc King of the Nguyen Dynasty signed an agreement to recognized French Ruling in the South of Vietnam. During the French time, Sai Gon was known as the Pearl of Orient.