| |
| 1947, Nov. 8 |
| |
| In a bloodless coup d'état, an army group under Marshal Luang Pibul Songgram overthrew the government. | 1 |
| |
| 1948, Jan. 29 |
| |
| A general election resulted in a victory for the new government, and on April 8, Luang Pibul Songgram became premier. There was considerable resistance, however, notably from the followers of Nai Pridi Panomyang, wartime resistance leader. | 2 |
| |
| 1949, May 11 |
| |
| Siam henceforth was to be known as Thailand. | 3 |
| |
| 1950 |
| |
| The rise of communism in Southeast Asia found Thailand on the anti-Communist side. On March 1, it recognized the South Korean government, and later sent a contingent to participate in the Korean War on the UN side. | 4 |
| |
| March 24 |
| |
| King Phumiphol Adulyadet returned from Switzerland, where he had been studying. | 5 |
| |
| May 5 |
| |
| Phumiphol Adulyadet was crowned King RAMA IX. | 6 |
| |
| |
