Thailand's Historical Timeline: From Ancient Kingdoms to Chakri Dynasty

Key Epochs

1. 1st millennium BCE: Mon, Khmer, Dvaravati cultures in central/south.
2. 13th century: Sukhothai Kingdom – first unified Thai state (Ramkhamhaeng).
3. 14th–18th century: Ayutthaya Kingdom – regional superpower, sacked by Burma 1767.
4. 1768–1782: Thonburi Kingdom – Taksin reunifies, then overthrown.
5. 1782–present: Chakri Dynasty – Rama I founds Bangkok; current king Rama X (since 2016).

Name change from "Siam" to "Thailand" (1939, reverted 1945–49, permanent 1949).