The Thai Kingdom of Sukothai is established, with Theravada Buddhism as the state religion. Later in the century it vassalises significant parts of modern Thailand, Laos, Burma, and Malaysia.
... is spread out with 29.5% under the age of 18, 6.7% from 18 to 24, 33.6% from 25 to 44, 20.6% from 45 to 64, and 9.6% who are 65 years of age or older. The median ...