Timeline of the history of tibet (127 BC – 2015 AD)
127 BCE
Nyatri Tsenpo becomes the first king of Tibet and begins official Tibetan Royal Year.
233 AD
Lha Thori Nyantsen, the 28th king of Tibet receives a Buddhist scripture called Nyenpo Sangwa (The Secret) in his palace Yumbu Lhakhang. This marks the initial introduction of Buddhism in Tibet.
629 AD
Songtsen Gampo becomes the 33rd king of Tibet.
633 AD
Thonmi Sambhota goes to India and on his return devises Tibetan script based on Brahmi and Gupta scripts.
634 AD
Songtsan Gampo unified all Tibet under his rule and established political relations with China.
641 AD
Songtsan Gampo marries Chinese Princess Weng Cheng and Nepalese Princess Bhrikuti. The two queens influence the spread of Buddhism in Tibet.
643 AD
Zhang Zhung under king Likme becomes a part of Songtse Gampo’s kingdom.
755 AD
Trisong Detsen becomes the 37th king of Tibet and invites Indian Buddhist scholars Shantarakshita and Padmasambhava to Tibet.
