Ram Khamhaeng Inscription

The Ram Khamhaeng Inscription, formally known as Sukhothai Inscription No. 1, is a stone stele bearing inscriptions which have traditionally been regarded as the earliest example of the Thai script. Discovered in 1833 by King Mongkut (Rama IV), it was eventually deciphered and dated to 1292. The text gives, among other things, a description of the Sukhothai Kingdom during the time of King Ram Khamhaeng, to whom it is usually attributed. The inscription had immense influence over the development of Thai historiography from the early 20th century, which came to regard Sukhothai as the first Thai kingdom.

From the late 1980s to the 1990s, assertions that the stele was a forgery from a later date led to intense scholarly debate. This debate still has not been definitively settled, but subsequent electron microscopy has suggested that the stele is likely to be as old as originally claimed, and the majority of academics in the field today regard it as at least partly authentic. The inscription is widely regarded as the single most important document in Thai history, and was inscribed on the UNESCO's Memory of the World Register in 2003.