* Astronomy

Wilhelm Filchner (September 13, 1877 - May 7, 1957) was a German explorer.
At the age of 21, he participated in his first expedition, which led him to Russia. Two years later, he travelled alone and on horseback through the Pamir Mountains, from Osh to Murgabh to the upper Wakhan to Tashkurgan and back. From 1903 to 1905 he led an expedition through Tibet.
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