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In page Pierre Teilhard de Chardin:

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Teilhard took part as a scientist in the Croisière Jaune (Yellow Cruise) financed by André Citroën in Central Asia. Northwest of Beijing in Kalgan, he joined the Chinese group who joined the second part of the team, the Pamir group, in Aksu City. He remained with his colleagues for several months in Ürümqi, capital of Xinjiang. In 1933, Rome ordered him to give up his post in Paris. Teilhard subsequently undertook several explorations in the south of China. He traveled in the valleys of the Yangtze and Sichuan in 1934, then, the following year, in Guangxi and Guangdong.[citation needed]