Muay Thai or Thai boxing is the cultural martial art of Thailand. The origin of Muay Thai dates back several hundred years, and was, essentially, developed as a form of close-combat that used the entire body as a weapon. However, it must be added that the history of Muay Thai, and its' direct origin is a question of debate among modern scholars. Much of the history of Muay Thai was lost when the Burmese sacked Ayudhaya, the capital city of Siam (Thailand) in the 14th century. The Burmese looted the temples and depositories of knowledge held in the capital, and most written history was lost in this period. What volumes were saved are preserved and protected as national treasures for Thai culture and heritage.