Atiśa Dipankara Shrijnana (Bengali: অতীশ দীপঙ্কর শ্রীজ্ঞান Ôtish Dipôngkor Srigên) (980-1054 CE) was a Buddhist teacher from the Pala Empire who, along with Konchog Gyalpo and Marpa, was one of the major figures in the establishment of the Sarma lineages in Tibet after the repression of Buddhism by King Langdarma (Glang Darma).
So, is Tibet a part of Bengal?
That could be so, if the Chinese logic that Arunachal is Southern Tibet!
Ray Langdarma never had son and therefor, he was the last royal lineage ruler of Tibet after he got assassinate for good. And that was during the prehistoric. Atisha came to Tibet only after many centuries at the golden times of Tibet. About Tibet being part of Bengal that's another very interesting subject. Though biologically we the (south western region of tibetan people/ Utsang/central tibet) share same blood/race with not just bengali but also with other indian royal lineages but geographically Tibet is never part of India ofcourse; Yet India did took some of our tibetan lands like Kalimpong and etc on the foothills of himalayas in west bengal. But our tibetan central government has decided to let it go in early 1940s shimla conference. But that's past so its cool. If that's what's mean to be let it be. I careless about politics anyways, but that will not change each and every single tibetan people's devotion towards HH Dalai Lama from the bottom of our heart. To support my post check out the statement of HH Dalai Lama below. :Laie_39:
"Tibet is the snowy-land located beyond the Himalayan ranges to the north of India- the Land of Aryas. Buddha Shakyamuni blessed this land and prophesied the spread of the Buddha Dharma there. Mount Kailash and Lake Manasrovar are located there, both of which are considered sacred by India's major religious traditions. Tibet is the source of the four great rivers that flow into India and finally reach the great oceans. Geographically, it is like the Indian highlands, which many great Indian masters have referred to as the Heaven of Thirty-three, (Trayastrimshadeva). Regarding the date at which the Tibetan race first came about, archaeological findings suggest it was at least ten thousand years ago. The Bon scriptures concur. According to the Bengali scholar Prajna Varma, Tibetans are descendants of Rupati, king of a south Indian kingdom, who escaped to Tibet with his subjects after the Mahabharata War. As for the King of Tibet, it is believed that around 150 BCE, a prince of Magadha escaped to Tibet after being exiled from his kingdom. Tibetans named him Nya-tri Tsenpo and made him their king. Thus began the Tibetan royal lineage. Whether we consider our geography, ancestry, or our royal dynasty, India and Tibet have long had close ties with each other."