Earliest History:
Fossilized remains of plants and animals have been discovered in many areas of Thailand, particularly in the Korat Plateau in northeastern Thailand. Most of the animal fossils found are of dinosaurs, which date primarily to the Jurassic era though some are from the late-Triassic, the oldest such evidence of dinosaurs in Southeast Asia.
The dinosaur bones encased in sandstone in the Phu Wiang hills of Khon Kaen province included Phuwiangosaurus sirindhornae, a gigantic plant-eating dinosaur that had a long neck and tail and a small head. Four other species of dinosaur unearthed in Phu Wiang include Siamotyrannus isanensis, a smaller version of Tyrannosaurus rex, Siamosauraus suteethorni, a crocodile-like creature, Compsognathus, the world’s smallest dinosaur, and Ornithomimosaur, an ostrich-like dinosaur. In nearby Chaiyaphum province two other new dinosaur species were discovered: Psittacosaurus sattayaraki, a parrot-billed dinosaur, and Isanosaurus attavipachi, which is similar to Phuwiangosaurus.
Homo erectus fossils have also been discovered in Thailand. Known as the Lampang man for its discovery in Lampang province, the remains have been dated to roughly 1,000,000 – 500,000 years ago in the Pleistocene Era. The first evidence of humans living in modern-day Thailand was discovered at Ban Chiang, near Udon Thani in northeastern Thailand; grave sites and artifacts including bronze tools and pottery provide evidence of a society that is thought to have had knowledge of rice cultivation and occupied the area continuously from 2100 to 200 BCE, spanning the Neolithic to the Iron Age.
Pre-Thai Kingdoms (0-1250 C.E.)
Over the centuries leading up to the era of recorded history, Thailand was first peopled by Mon and Khmer groups and later by the Tai, an ethnic group that migrated from southern China to Vietnam and gradually into Laos and northern Thailand.
In the first millennium of the Common Era, Tai people had dispersed across Yunan, Vietnam, Laos, Thailand, and Myanmar fragmenting into various linguistic sub sects. Relatively minor players in the region throughout this period, the Tai inhabited the northernmost reaches of Southeast Asia, sandwiched between the kingdoms of Nan Zhao, Pyu, and Angkor.
Beginning in around the 2nd century CE, the Srivijaya Empire of Sumatra expanded its reach up the Malaysian Peninsula into southern Thailand. Nakhon Si Thammarat and Chiaya, Surat Thani were founded during this period to facilitate trade across the Isthmus of Kra.
Around the 6th to the 9th centuries, the fertile central plains were inhabited by a Mon civilization known as Dvaravati. Distinct from its neighboring kingdoms of Chenla and Angkor, Dvaravati remains a mysterious civilization that established cities surrounded by moats and earthen walls, Lopburi serving as an important religious center and Nakhon Pathom near Bangkok possibly its ‘capital’. While much is unknown about this realm, the Dvaravati had well established internal and external trading routes that were important to the development of Thailand and left a wealth of Buddhist artwork that testifies to the great influence Indian culture and religion had on the region.
From the 9th to the 11th centuries the Khmers of Angkor expanded their kingdom to include most of modern-day Thailand, with important provincial cities established at Phimai, Lopburi and even Nakhon Si Thammarat. Over several centuries many facets of the Khmer culture were imposed on/absorbed by the native population, which was becoming increasingly Tai as those populations migrated south. The temples at Phanom Rung, Phimai, and Lopburi are enduring testaments to this period of Thai history.
Throughout the reign of Angkor, Lopburi often asserted its independence and was clearly an important center for burgeoning Syam culture. The Chinese, who referred to emissaries from the region as representing “Hsien” or Siam (as it was apparently pronounced) documented a request from Lopburi requesting independence from Angkor as early as 1001.
In northern Thailand, Buddhist scholars from Lopburi founded a city-state known as Haripunjaya in Lamphun, northern Thailand around the 9th century (a Mon enclave that remained independent until the 13th century). Elsewhere in the north, the Tai people were fanning out and establishing their own city states, notably at Chiang Saen, where one of the first powerful Thai kingdoms, Lan Na, was originally established in the 12th century. The establishment of Lan Na, Sukhothai, and Phayao, three allied kingdoms founded by contemporary leaders, represents the beginning of the Thai history as we know it.
The Kingdoms of Sukhothai (1238-1360 C.E) and Lan Na (1259 – 1558 C.E.)
Thais began to emerge as a dominant force in the region in the13th century, gradually asserting independence from neighboring kingdoms. Founded by Khun Pha Muang and Khun Bang Klang Thao in 1238, the Kingdom of Sukhothai was named “the dawn of happiness” by its rulers. The Sukhothai Period is considered a golden era of Thai history, an ideal state in a land of plenty governed by paternal and benevolent kings, the most famous of whom was King Ramkhamhaeng the Great (c.1279-98), who greatly expanded the Kingdom’s borders. In addition to developing some of the most beautiful Thai art, the Sukhothai Kingdom is credited with developing the modern Thai alphabet.
Meanwhile in northern Thailand, King Mengrai’s Kingdom of Lan Na consolidated disparate realms, took over the city of Haripunjaya, and flourished for several hundred years, particularly after the founding of Chiang Mai (New City) as its capital in 1296. From its inception through its height of prosperity, the Lan Na people lived peacefully beside the Kingdom of Sukhothai. King Mengrai, founder of the Lan Na Kingdom was a powerful ruler and ally of both King Ramkhamhaeng of Sukhothai and King Ngam Muang of Phayao. Together these kingdoms were able to ward off the Mongol invaders who caused great upheaval in Asia during the 13th century, although a personal visit to Emperor Kublai Khan by King Ramkhamhaeng in 1282 arguably helped stave off invasion as well as the staunch defenses of Mengrai’s Lan Na armies did.
Following the death of King Ramkhamhaeng, the kingdom of Sukhothai rapidly declined and Lan Na expanded its influence over its neighboring kingdoms, many of which were former suzerains of Sukhothai. In the middle of the 15th Century Lan Na arts and literature reached a pinnacle during the King Tilokoraj period. However, after the king’s death, Lan Na weakened due to internal conflicts and Chiang Mai fell under Burmese control around 1564; while the Burmese occupied the northern region for a few centuries, they did little development, using Chiang Mai as a military base from which to battle the Kingdom of Ayutthaya, a mighty kingdom in the central plains that was gradually exerting its influence from the mid 14th century onwards.
The Kingdom of Ayutthaya (1350-1767)
No longer the paternal and accessible rulers that the kings of Sukhothai had been, Ayutthaya’s sovereigns were absolute monarchs and assumed the title devaraja (god-king), adopting Khmer cultural influences from the very beginning, but also having influences from Mon, Tai, and Chinese inhabitants. The early part of this period saw Ayutthaya extend its sovereignty over neighboring Thai principalities and come into conflict with its neighbors, including Cambodia, whose capital at Angkor the Thais finally were able to overrun in 1430-1431. By the 17th century, Ayutthaya (which had informally ‘adopted’ the name Siam, a name the Tai of central Thailand had been referred to as by China, Champa, and Cambodia) had established diplomatic and commercial relations with western countries and was frequently visited by traders from Holland, France, China, and Japan. However, in 1767, after repeated attempts, the Burmese invaded and successfully sacked and razed the city of Ayutthaya.
Despite their overwhelming victory, the Burmese did not retain control of Siam. A young general named Phya Taksin and his followers broke through the Burmese lines and established themselves in Thonburi. Seven months after the fall of Ayutthaya, Taksin and his forces sailed back up the Chao Phraya River to Ayutthaya and expelled the Burmese occupation garrison, though tragically the capital already had been looted and almost thoroughly razed.
Thon Buri Period (1767-1782)
King Taksin assumed the vacant throne amidst a state of disorder and established a new capital nearer to the sea, a move that would facilitate foreign trade, ensure the procurement of arms, and make defense and withdrawal easier in case of a renewed Burmese attack. He established his new capital at Thonburi, on the west bank of the Chao Phraya River, opposite modern-day Bangkok. Despite reunifying the kingdom, the rule of Taksin was not an easy one, the usurper lacking central authority. Dethroned by a popular uprising that led to his death, Taksin had nonetheless succeeded in holding the kingdom together following the chaos left by the successful Burmese invasion.
Founding of Rattanakosin to founding of democracy (1782 – 1932)
Born of noble blood, Tong Duang, a powerful general of Taksin’s army, became Rama I, the first king of the Chakri Dynasty and ruled from 1782 to 1809. His first action as king was to transfer the royal capital across the river from Thon Buri to Bangkok and build the Grand Palace and other royal structures with the bricks of ruined Ayutthaya. Rama II (R. 1809-1824) continued the restoration begun by his predecessor rebuilding the kingdom’s stature as a centralized, economically prosperous land. King Nang Klao, Rama III (R. 1824-1851) reopened relations with Western nations and established trade with China, further solidifying Siam’s role as the leader of the region.
King Mongkut, Rama IV, (R. 1851-1868) may have achieved western fame through the story “The King and I”, but won the hearts of Thais for his accomplishments including the establishment of treaties with European countries, thus avoiding colonization, and modernizing Thailand through many social and economic reforms. King Chulalongkorn, Rama V (R. 1869-1910) continued his father’s tradition of reform, abolishing slavery and improving the public welfare and administrative systems. Educational reforms, including compulsory education, were introduced by King Vajiravudh, Rama VI (R. 1910-1925).
Transition from absolute monarchy to functional democracy (1932 – 2010):
In 1932 a cadre of military officers and civil servants staged a bloodless coup d’etat, which transformed the Government of Siam to a constitutional monarchy, providing the nation with its first constitution and ending nearly 700 years of absolute rule by royalty. The new constitution established a National Assembly half appointed and half indirectly-elected, with full democracy to come later. The revolutionary government quickly factionalized however; after an unsuccessful armed uprising and another bloodless coup the military was able to increase its hold on the reins of power.
While King Rama VII had initially accepted his greatly reduced authority he abdicated in 1935 in protest of the undemocratic nature of the new regime. Following a period of uncertainty, the government chose 10 year old Prince Ananda Mahidol, who was attending school in Switzerland, to be king; for the first time in its history, Siam was without a resident monarch. For a number of years Thailand was on a path towards developing a stable and functional democracy.
In early 1939, political opponents of the increasingly fascist military regime were arrested and many were executed. The Prime Minister’s post was occupied by Field Marshal Plaek Pibulsonggram (aka “Pibun”) who ordered the name of the country changed from Siam to Prathet Thai (“land of the free”) or Thailand as part of an orchestrated nationalist movement.
Thailand then launched an invasion of French Indochina, setting off the Franco-Thai War (1940-1941). Japan mediated an armistice and a peace treaty that greatly favored the Thais and their territorial claims; however, on December 8, 1941, just hours after the bombing of Pearl Harbor, Japan sent its own troops across Southeast Asia.
Following a brief resistance (mere hours) Pibun called an armistice and threw his lot in with the Japanese, who agreed to help Thailand regain territories lost to the French and British. As a formal ally of Japan, Thailand declared war on Great Britain and the United States in January, 1942. Those who disagreed were removed from office, including Pridi Phanomyong, an influential member of the 1932 coup, who was assigned to be regent for the young King Ananda Mahidol.
While the Thai ambassador to the United Kingdom delivered the declaration of war to the British government, the Thai Ambassador to the United States, Mom Rajawongse Seni Pramoj, refused to deliver his. Ambassador Seni denounced the Phibun government and formed a Seri Thai (“Free Thai”) movement in Washington. The US Government found it prudent to act as if Seni continued to represent Thailand and openly encouraged the formation and development of the Seri Thai. A similar organization was established across the pond, despite a state of war existing between the UK and Thailand.
A coordinated effort between Thai Freedom fighters in the United States, United Kingdom, and Thailand was established to undermine the Japanese “occupation” of Thailand and by 1945 thousands of Seri Thai volunteers were under arms or had “infiltrated” the government. The turning tide of war, American bombings of Bangkok, and economic hardship across the country undermined the government’s authority and Phibun was forced to resign; the new Prime Minister, Khuang Abhaiwongse, was a member of the Seri Thai.
Aided by the British and Americans, the Seri Thai armed and organized troops in preparation of an uprising against the Japanese. In the end however, no uprising occurred as the Japanese surrendered to the United States on Aug 15, 1945 following the atomic bomb attacks.
The British were appointed the Allied agents for administering Thailand and the British government demanded major reparations; rumors swirled that Thailand might even be ceded to the United Kingdom, as the UK planned to station troops there indefinitely. Thanks in great part to pressure by the United States, including Betty McKenzie, a US State Department Employee who vociferously lobbied her government, the British guaranteed the complete sovereignty and independence of Siam. Returning seized territories to France eased Thai acceptance into the United Nations.
Ambassador Seni Pramoj became Prime Minister in 1945, and promptly restored the name Siam as a symbolic end to Phibun’s nationalist regime. “Thailand’s” first democratic elections were held in 1946 under a new constitution and Pridi’s People’s Party won a majority. Despite receiving substantial foreign aid from the United States however, stability was not to last in Siam.
Following the mysterious death of the young King, Pridi was forced to resign; without his leadership, the civilian government floundered and in November 1947 the army again seized power, reinstating Phibun as Prime Minister in 1948. Pridi was driven into exile and the king’s younger brother Bhumibol Adulyadej was crowned Rama IX, King of Siam in 1950.
The return of Phibun and military rule in Thailand coincided with the onset of the Cold War and the establishment of a communist regime in North Vietnam. Once again renamed Thailand in 1949, the country received enormous support from the United States, who was more concerned with containing communism than supporting democracy. Despite the extrajudicial, politically motivated removal of Phibun’s enemies and a new constitution that was quickly forsaken in favor of the old 1932 undemocratic political process, the United States and Thailand had a shared foes in China and Vietnam. While Thai student and press protests were met with repression from the government, the Thai economy was booming from trade with and aid from the United States.
A bloodless coup that ended Pibun’s career simply led to a series of changes in leadership more than changes in policy, and Thailand became an active ally of the United States in its war with Vietnam while doing little to promote democracy at home. However, the economic boom also resulted in both rapid modernization and westernization of Thai Society. Consequently, a growing middle class, particularly youth who had been exposed to American idealism, were growing discontent with the undemocratic rule of the military regime.
By the early 1970’s a number of student protests and each resulting government backlash had pushed Thai society to a tipping point. On October 14, 1973, a demonstration with several hundred thousand protesters demanding a new constitution erupted in violence. Tanks and helicopters supported thousands of troops who were sent in to gun down the protesting students. Chastising both sides, the King ordered the military rulers to leave the country and appointed a new prime minister. Several years of flourishing freedom and left-leaning political discourse at once exhilarated and destabilized the kingdom. A reactionary backlash led to widespread violence against suspected communists. In October 1976 an orchestrated attack on students at Thammasat University shocked the nation with its bloody brutality and opened the door for the military to once again seize power.
Since that time however, Thailand had been making a fitful progression towards a more stable civilian ruled democracy, albeit one that is punctuated by occasional, yet more benign military coups. One hallmark was the 1997 people’s constitution, the first to establish direct elections of all parliamentary representatives, provide checks and balances, and guarantee certain fundamental human rights. The most recent military intervention occurred in 2006, when the first prime minister to win reelection in Thai history was ousted following corruption and abuse of power allegations. Despite the upheaval, a civilian government was reinstated after a brief period and a new constitution aimed at preventing future abuses of power was nominally ratified by the people of Thailand.