Tibetan script in the context of "Je Khenpo"

While the Tibetan Plateau has been inhabited since pre-historic times, most of Tibet's history went unrecorded until the creation of Tibetan script in the 7th century. Tibetan texts refer to the kingdom of Zhangzhung (c. 500 BCE – 625 CE) as the precursor of later Tibetan kingdoms and the originators of the Bon religion. While mythical accounts of early rulers of the Yarlung dynasty exist, historical accounts begin with the introduction of Tibetan script from the unified Tibetan Empire in the 7th century. Following the dissolution of Tibetan Empire and a period of fragmentation in the 9th–10th centuries, a Buddhist revival in the 10th–12th centuries saw the development of three of the four major schools of Tibetan Buddhism.

After a period of control by the Mongol Empire and the also Mongol led Yuan dynasty, Tibet effectively became independent in the 14th century and was ruled by a succession of noble houses for the next 300 years. In the 16th century, the Dalai Lama title was created by Altan Khan, and as requested by the family of Altan Khan, seal of authority was granted to the Dalai Lama by the Wanli Emperor. In the 17th century, the senior lama of the Gelug school, the Dalai Lama, became the head of state with the aid of the Khoshut Khanate. Seal of authority and golden sheets were granted by the Shunzhi Emperor to both the Dalai Lama and the founder Güshi Khan of Khoshut Khanate in 1653. In 1717, the Dzungar Khanate invaded Lhasa, killed Lha-bzang Khan of the Khoshut Khanate, which effectively destroyed the Khoshut Khanate. The Qing dynasty then sent military troops in the same year to fight the Dzungars, but failed.

Aśvaghoṣa, also transliterated Ashvaghosha (Sanskrit: [ˌɐɕʋɐˈɡʱoːʂɐ], अश्वघोष; lit. "Having a Horse-Voice"; Tibetan: སློབ་དཔོན་དཔའ་བོ།, Wylie: slob dpon dpa' bo; Chinese: 馬鳴菩薩; pinyin: Mǎmíng púsà; lit. 'Bodhisattva with a Horse-Voice') (c. 80 – c. 150 CE), was a Buddhist philosopher, dramatist, poet, musician, and orator from India. He was born in Saketa, today known as Ayodhya.

He is believed to have been the first Sanskrit dramatist, and is considered the greatest Indian poet prior to Kālidāsa. It seems probable that he was the contemporary and spiritual adviser of Kanishka in the first century of our era. He was the most famous in a group of Buddhist court writers, whose epics rivaled the contemporary Ramayana. Whereas much of Buddhist literature prior to the time of Aśvaghoṣa had been composed in Pāli and Prakrit, Aśvaghoṣa wrote in Classical Sanskrit. He may have been associated with the Sarvāstivāda or the Mahasanghika schools.

Amitābha (Sanskrit pronunciation: [ɐmɪˈtaːbʱɐ], "Measureless" or "Limitless" Light), also known as Amituofo in Chinese, Amida Butsu in Japanese, Amita-bul in Korean, A Di Đà Phật in Vietnamese, and Öpakmé in Tibetan, is one of the main Buddhas of Mahayana Buddhism and the most widely venerated Buddhist figure in East Asian Buddhism. Amitābha is also known by the name Amitāyus ("Measureless Life").

Amitābha is the main figure in two influential Indian Buddhist Mahayana Scriptures: the Sutra of Measureless Life and the Amitābha Sūtra. According to the Sutra of Measureless Life, Amitābha established a pure land of perfect peace and happiness, called Sukhāvatī ("Blissful"), where beings who mindfully remember him with faith may be reborn and then quickly attain enlightenment. The pure land is the result of a set of vows Amitābha made long ago. As his name means Limitless Light, Amitābha's light is said to radiate throughout the cosmos and shine on all beings. Because of this, Amitābha is often depicted radiating light, a symbol for his wisdom. As per the name Amitāyus, this Buddha is also associated with infinite life, since his lifespan is said to be immeasurable. Amitābha's measureless life is seen as being related to his infinite compassion.

Sky burial (Tibetan: བྱ་གཏོར་, Wylie: bya gtor, lit. "bird-scattered") is a funeral practice in which a corpse is placed on a mountaintop to decompose while exposed to the elements, or to be eaten by scavenging animals, especially crows, vultures, bears and jackals. Comparable excarnation practices are part of Zoroastrian burial rites where deceased are exposed to the elements and scavenger birds on stone structures called Dakhma. Sky burials are endemic to Tibet, Qinghai, Sichuan, and Inner Mongolia, as well as in Mongolia, Nepal, Bhutan, and parts of India such as Sikkim and Zanskar. The locations of preparation and sky burial are understood in the Vajrayana Buddhist traditions as charnel grounds. Few such places remain operational today, as the practice was completely banned during the Cultural Revolution as a superstitious practice; in modern times, the practice is regulated by the Chinese Communist Party due to the ongoing decline of vulture populations.

The majority of Tibetan people and many Mongols adhere to Vajrayana Buddhism, which teaches the transmigration of spirits. In this tradition there is no need to preserve the body, as it becomes an empty vessel upon death. Birds may eat it or nature may cause it to decompose. The function of the sky burial is simply to dispose of the remains in as generous a way as possible (the origin of the practice's Tibetan name). In much of Tibet and Qinghai, the ground is too hard and rocky to dig a grave, and due to the scarcity of fuel and timber, sky burials were typically more practical than the traditional Buddhist practice of cremation, which has been limited to high lamas and some other dignitaries.

The Yarlung Tsangpo, also called Yarlung Zangbo (Tibetan: ཡར་ཀླུངས་གཙང་པོ་, Wylie: yar kLungs gTsang po, ZWPY: Yarlung Zangbo) and Yalu Zangbu River (Chinese: 雅鲁藏布江; pinyin: Yǎlǔzàngbù Jiāng) is a river that flows through the Tibet Autonomous Region of China and Arunachal Pradesh of India. It is the longest river of Tibet and the fifth longest in China. The upper section is also called Dangque Zangbu meaning "Horse River".

Originating from the Angsi Glacier in western Tibet, southeast of Mount Kailash and Lake Manasarovar, it later forms the South Tibet Valley and Yarlung Tsangpo Grand Canyon before passing into the state of Arunachal Pradesh in India. Downstream from Arunachal Pradesh, the river becomes far wider and is called the Siang. After reaching Assam, the river is known as the Brahmaputra.

Bon or Bön (Tibetan: བོན་, Wylie: bon, ZWPY: Pön, Lhasa dialect: [pʰø̃̀]), also known as Yungdrung Bon (Tibetan: གཡུང་དྲུང་བོན་, Wylie: gyung drung bon, ZWPY: Yungchung Pön, lit. 'eternal Bon'), is the indigenous Tibetan religion which shares many similarities and influences with Tibetan Buddhism. It initially developed in the tenth and eleventh centuries but retains elements from earlier Tibetan religious traditions. Bon is a significant minority religion in Tibet, especially in the east, as well as in the surrounding Himalayan regions.

The relationship between Bon and Tibetan Buddhism has been a subject of debate. According to the modern scholar Geoffrey Samuel, while Bon is "essentially a variant of Tibetan Buddhism" with many resemblances to Nyingma, it also preserves some genuinely ancient pre-Buddhist elements. David Snellgrove likewise sees Bon as a form of Buddhism, albeit a heterodox kind. Similarly, John Powers writes that "historical evidence indicates that Bön only developed as a self-conscious religious system under the influence of Buddhism".

The Yarlung dynasty (Tibetan: བོད་ཀྱི་གདོད་མའི་མངའ་མཛད།) was a Tibetan dynasty that existed from 127 BCE to 842 CE. It produced 42 rulers and gave rise to the Tibetan Empire period from 614 CE to 848 CE, credited to the 33rd monarch Songtsen Gampo, and lasting through to the 40th monarch Ralpachen. Ralpachen was murdered in 838 by his brother, the future 41st monarch Ü Dum Tsen, who in turn ruled for only one year (841–842) until his own murder. The dissolution of the empire occurred by 848.

The early Yarlung dynasty rulers lived before the Tibetan script was created, and their reigns and lives were documented through the lineage of verbal history until c. 650 when in the reign of the 33rd king of the Yarlung Dynasty Songtsen Gampo, the Tibetan alphabet and grammar were created and the royal record keeping of people and events called the Chronicle of Ba began. While some scholars feel unsure of the definitive existence due to the lack of written records before 650, the verbal lineage of Tibetan history is considered definitive for most scholars.

The Tibetan Empire, or the Empire of Tibet (Tibetan: བོད་ཆེན་པོ, Wylie: bod chen po, lit. 'Great Tibet') was centered on the Tibetan Plateau and formed as a result of expansions under the Yarlung dynasty's 33rd king, Songtsen Gampo, in the 7th century. It expanded further under Trisong Detsen and reached its greatest extent under Ralpachen, stretching east to Chang'an, west beyond modern Afghanistan, south into modern India and the Bay of Bengal. It is referred to as Tufan or Tubo (吐蕃) in Chinese sources.

The Yarlung dynasty was founded in 127 BC in the Yarlung Valley along the Yarlung River, south of Lhasa. The Yarlung capital was moved in the 7th century from the Yungbulakang Palace to Lhasa by the 33rd ruler Songtsen Gampo, and into the Red Fort during the imperial period which continued to the 9th century. The beginning of the imperial period is marked in the reign of the 33rd ruler of the Yarlung dynasty, Songtsen Gampo. The power of Tibet's military empire gradually increased over a diverse terrain. During the reign of Trisong Detsen, the empire became more powerful and increased in size. At this time, a 783 treaty between the Tibetan Empire and the Tang dynasty defined the borders, as commemorated by the Shol Potala Pillar in Lhasa. Borders were again confirmed during the later reign of the 40th king Ralpachen through his 821–823 treaty, which was inscribed on a pillar at Jokhang. In the opening years of the 9th century, the Tibetan Empire controlled territories extending from the Tarim Basin to the Himalayas and Bengal, and from the Pamirs into what are now the Chinese provinces of Sichuan, Gansu and Yunnan. The murder of King Ralpachen in 838 by his brother Langdarma, and Langdarma's subsequent enthronement followed by his assassination in 842 marks the simultaneous beginning of the dissolution of the empire period.

The Era of Fragmentation (Tibetan: སིལ་ཆད་དུ་འཆད་པ) was an era of disunity in Tibetan history lasting from the death of the Tibetan Empire's last emperor, Langdarma, in 842 until Drogön Chögyal Phagpa became the Imperial Preceptor of the three regions of Tibet in 1253, following the Mongol conquest in the 1240s. During this period, the political unity of the Tibetan Empire collapsed following the Battle of U-Yor [zh] between Yumtän (Yum brtan) and Ösung (’Od-srung), after which followed numerous rebellions against the remnants of imperial Tibet and the rise of regional warlords.