Question: what are some major historical events in thailand?
Answer:  Prehistory.
 Initial states and Indianized states. ... 
 Arrival of the Tais.
 Sukhothai Kingdom (1238–1438)
 Ayutthaya period (1351–1767) ... 
 Thonburi and Early Rattanakosin period (1768–1851) ... 
 Modernization under Rama IV and Rama V (1851–1910) ... 
 Nation formation under Vajiravudh and Prajadhipok (1910–1932)