Title: Thailand
Content: changed the name of the kingdom to "Thailand" and affected many aspects of daily life. After France was conquered by Nazi Germany in June 1940, Thailand took the opportunity to retake territories conceded to the French many decades earlier, which Thailand won the majority of the battles. The conflict came to an end with Japanese mediation. On December 7, 1941, the Empire of Japan launched an invasion of Thailand, and fighting broke out shortly before Phibun ordered an armistice. Japan was granted free passage, and on December 21, Thailand and Japan signed a military alliance with a secret protocol, wherein

Title: Plaek Phibunsongkhram
Content: who at the time were harshly repressed. In 1939, Phibun changed the country's name from "Siam" to "Thailand". In 1941, in the midst of World War II, he decreed 1 January as the official start of the new year instead of the traditional 13 April. Ardently pro-Japanese at the beginning, Phibun and his administration soon distanced themselves from Japan following the aftermath of the French-Thai War. This conflict lasted from October 1940 to May 1941. Following the peace talks, the Japanese gained the right to occupy French Indo-China. Threatened with war, Phibun stated that the Japanese would be the transgressors.

Title: History of Thailand (1932–1973)
Content: newspapers were instructed to print only good news emanating from Axis sources, while sarcastic comments about the internal situation were banned. On 23 June 1939, Phibun changed the country's name from Siam to Prathet Thai (Thai: ประเทศไทย), or Thailand, said to mean "land of the free". This was a nationalist gesture: it implied the unity of all the Tai-speaking peoples, including the Lao and the Shan, but excluding the Chinese. The regime's slogan became "Thailand for the Thai." Modernisation was also an important theme in Phibun's new Thai nationalism. From 1939 to 1942 he issued a set of twelve Cultural

Title: History of Thailand (1932–1973)
Content: Thailand and Japan Concerning the Continuance of Friendly Relations and the Mutual Respect of Each Other's Territorial Integrity, concluded in June 1940. Also concluded in 1940 was the British-Thai Non-Aggression Pact between the governments of Great Britain and the Kingdom of Thailand. On 18 July 1940, the British government accepted Japanese demands to close the Burma Road for three months to prevent war supplies from reaching China. As the government of Thailand was now becoming aligned with the Japanese, the British government concluded the pact with Bangkok so as not to antagonize Tokyo. Luang Wichit wrote a number of popular

Title: Kingdom of Chiang Mai
Content: in 1939 the title was abolished under the government of General Plaek Phibunsongkhram who sought to unify Thailand and suppress regional differences. The modern descendants of the rulers of Chiang Mai bear the surname Na Chiangmai () as granted by King Vajiravudh under his 1912 Surname Act. 1. "Phraya" Vachiraprakarn, 1774 - 1776 1. "King" Kawila, 1782-1813 <br> 2. "Prince" Thammalangka, 1813-1822<br> 3. "Prince" Khamfan, 1823-1825 <br> 4. "Prince" Phutthawong "or" Buddhavansa, 1826-1846<br> 5. "King" Mahotaraprathet, 1847-1854 <br> 6. "King" Kawirolot Suriyawong, 1856-1870<br> 7. "King" Inthawichayanon, 1873-1896 8. "Prince" Inthawarorot Suriyawong, 1901-1909 (Siam annexed Lanna)<br> 9. "Prince" Kaew Nawarat, 1911-1939

Question: By what name was Thailand known until 1939?
Answer: Siam