Thailand history commences in the pre history period and then during the last 2000 years is the history of different empires and different ethnic kingdoms. These flourished over different portions and at different times over the land which now comprises the modern Thailand nation. These groups and periods included The Srivijaya Kingdom in South Thailand the Dvaravati Kingdom of the Mon people in Central Thailand The Haripunchai Kingdom in North Thailand The Khmer Cambodian Empire over most of Thailand and the Tai Kingdoms the Lan na Kingdom the Sukhothai Kingdom the Ayutthaya Kingdom the Taksin Kingdom and the Chakri Kingdom. As not all events took place in all of Thailand we have also divided Thailand history into North Central Northeast and South Thailand history and therein dealt with events relevant to that part of Thailand.