"Ernst Boerschmann (18 February 1873 – 30 April 1949) was a German architect, photographer, and sinologist known for his research on and photography of historical Chinese ...
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architecture. He was the first foreigner to systematically document China’s religious architecture, compiling thousands of photographs, sketches, and architectural surveys over multiple trips to China in the first half of the twentieth century." - (en.wikipedia.org 11.08.2021)