About William Woodville Rockhill

William Woodville Rockhill was a United States diplomat, best known as the author of the U.S.'s Open Door Policy for China, the first American to learn to speak Tibetan, and one of the West's leading experts on the modern political history of China.
George Bogle was welcomed by the Panchen Lama at Tashilhunpo in Shigatse

World-famous explorers of the Tibetan territory

The location of Tibet, deep in the Himalaya mountains, made travel to Tibet extraordinarily difficult at any time, in addition to the fact that it traditionally was forbidden to all western foreigners. Additionally, the internal and external politics of Tibet, China, Bhutan, Assam, and the northern Indian kingdoms combined rendered entry into Tibet politically difficult for all explorers. .