Ram Khamhaeng
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.