The Khmer people has a population of about 1,260,600 people. They mostly live in the provinces of Mekong Delta. Their language belongs to the Mon-Khmer group.In addition, the Khmer is one of the 24 Vietnamese ethnic groups that have their own writing system. The system dates back about a thousand years.The Khmer are experienced farmers. They grow rice, raise cattle and poultry, make sugar for living.They have 2 main holidays: Chaul Chnam Thmey (New Year) and Greeting-the-Moon festival. The latter, which is also called Ok Om Bok, is hold to thank the Moon for favourable weather and a good harvest as well as to wish for the next successful crop