The 1954 agreement originates from the Convention of Calcutta, the Treaty of Lhasa, the Convention Between Great Britain and China Respecting Tibet, the Anglo-Russian Convention, Anglo Chinese trade regulations of 1908 and 1914, alteration of Aitchison treaty in 1938, failure of Tibetan appeal to UN, the Sino Tibetan Agreement 1951, Sino-India negotiations concerning Tibet, 1951 to 1953, and Sino–India conference on Tibetan trade and intercourse, December 1953 to April 1954.