Bhutan history is very rich, stone tools, weapons, elephants, and remnants of large stone structures provide evidence that Bhutan was inhabited as early as 2000 BC, although there are no existing records from that time. Historians have theorized that the state of Lhomon (literally, "southern darkness"), or Monyul ("Dark Land", a reference to the Monpa, the aboriginal peoples of Bhutan) may have existed between 500 BC and AD 600. The names Lhomon Tsendenjong (Sandalwood Country), and Lhomon Khashi, or Southern Mon (country of four approaches), have been found in ancient Bhutanese and Tibetan chronicles. The Dzong in the Paro valley, built in 1646. Buddhism was first introduced to Bhutan in the 7th century AD. Tibetan king Songtsän Gampo (reigned 627 to 649), a convert to Buddhism, who actually had extended the Tibetan Empire into Sikkim and Bhutan, ordered the construction of two Buddhist temples, at Bumthang in central Bhutan and at Kyichu (near Paro) in the Paro Valley. Buddhism was propagated in earnest in 746 under King Sindhu Rāja, an exiled Indian king who had established a government in Bumthang at Chakhar Gutho Palace. Trashigang Dzong, built in 1659. Much of the early bhutan history is unclear because most of the records were destroyed when fire ravaged the ancient capital, Punakha, in 1827. By the 10th century, Bhutan's political development was heavily influenced by its religious history. Various subsects of Buddhism emerged that were patronized by the various Mongol warlords. After the decline of the Yuan dynasty in the 14th century, these subsects vied with each other for supremacy in the political and religious landscape, eventually leading to the ascendancy of the Drukpa Lineage by the 16th century. A thrikhep (throne cover) from the 19th century. Throne covers were placed atop the temple cushions used by high lamas. The central circular swirling quadrune is the gankyil in its mode as the "Four Joys" Until the early 17th century in Bhutan's history, Bhutan existed as a patchwork of minor warring fiefdoms, when the area was unified by the Tibetan lama and military leader Ngawang Namgyal, who had fled religious persecution in Tibet. To defend the country against intermittent Tibetan forays, Namgyal built a network of impregnable dzongs or fortresses, and promulgated the Tsa Yig, a code of law that helped to bring local lords under centralized control. Many such dzong still exist and are active centers of religion and district administration. Portuguese Jesuits Cacella and Cabral were the first recorded Europeans to visit Bhutan, on their way to Tibet. They met Ngawang Namgyal, presented him with firearms, gunpowder and a telescope, and offered him their services in the war against Tibet, but the Zhabdrung declined the offer. After a stay of nearly eight months Cacella wrote a long letter from the Chagri Monastery reporting on his travels. This is a rare extant report of the Shabdrung. After Ngawang Namgyal's death in 1651, his passing was kept secret for 54 years; after a period of consolidation, Bhutan lapsed into internal conflict. In the year 1711 Bhutan went to war against the Mughal Empire and its Subedars, who restored Koch Bihar in the south. During the chaos that followed, the Tibetans unsuccessfully attacked Bhutan in 1714. In the 18th century, the Bhutanese invaded and occupied the kingdom of Cooch Behar to the south. In 1772, Cooch Behar appealed to the British East India Company which assisted them in ousting the Bhutanese and later in attacking Bhutan itself in 1774. A peace treaty was signed in which Bhutan agreed to retreat to its pre 1730 borders. However, the peace was tenuous, and border skirmishes with the British were to continue for the next hundred years. The skirmishes eventually led to the Duar War (1864 to 65), a confrontation for control of the Bengal Duars. After Bhutan lost the war, the Treaty of Sinchula was signed between British India and Bhutan. As part of the war reparations, the Duars were ceded to the United Kingdom in exchange for a rent of Rs. 50,000. The treaty ended all hostilities between British India and Bhutan. During the 1870s, power struggles between the rival valleys of Paro and Tongsa led to civil war in Bhutan, eventually leading to the ascendancy of Ugyen Wangchuck, the ponlop (governor) of Tongsa. From his power base in central Bhutan, Ugyen Wangchuck defeated his political enemies and united the country following several civil wars and rebellions during 1882 to 85. In 1907, an epochal year for the country, Ugyen Wangchuck was unanimously chosen as the hereditary king of the country by an assembly of leading Buddhist monks, government officials, and heads of important families. John Claude White, British Political Agent in Bhutan, took photographs of the ceremony. The British government promptly recognized the new monarchy, and in 1910 Bhutan signed the Treaty of Punakha, a subsidiary alliance which gave the British control of Bhutan's foreign affairs and meant that Bhutan was treated as an Indian princely state. This had little real effect, given Bhutan's historical reticence, and also did not appear to affect Bhutan's traditional relations with Tibet. After the new Union of India gained independence from the United Kingdom on 15 August 1947, Bhutan became one of the first countries to recognize India's independence. On 8 August 1949, a treaty similar to that of 1910, in which Britain had gained power over Bhutan's foreign relations, was signed with the newly independent India. In 1953, King Jigme Dorji Wangchuck established the country's legislature, a 130 member National Assembly to promote a more democratic form of governance. In 1965, he set up a Royal Advisory Council, and in 1968 he formed a Cabinet. In 1971, Bhutan was admitted to the United Nations, having held observer status for three years. In July 1972, Jigme Singye Wangchuck ascended to the throne at the age of sixteen after the death of his father, Dorji Wangchuck. So as you see Bhutan history is short but interesting.