Dalai Lama Says China Has Turned Tibet Into "Hell On Earth"

In 2009, the Dalai Lama delivered a speech in which he protested Communist China's treatment of Tibet and how their views had damaged the culture. He stated that the laws being pressed upon them had made Tibet a " hell on earth" and Tibetans were viewed as common criminals by the Chinese authorities. His main focus was the loss of tradition that the Tibetan people were facing. “Today, the religion, culture, language and identity, which successive generations of Tibetans have considered more precious than their lives, are nearing extinction,” stated the Dalai Lama. As well as threatening ancient traditions, the Chinese government had locked down significant areas in China as well as cutting off cell phone and internet locations to prevent communication to the outside world. Although his speech contained a strong tone and could be considered as angry, the Dalai Lama says he is still committed to working out this problem with China.

Factual Question: When did the Dalai Lama begin negotiations over the future of Tibet?
A: 1951 after Chinese troops invaded and seized control of Tibet Plateau