Johann Adam Schall von Bell and Qing Astronomy
Johann Adam Schall von Bell was a German Jesuit missionary, astronomer, and engineer who served both the Ming and Qing dynasties. Appointed as director of the Imperial Astronomical Bureau (Qintianjian) by the Shunzhi Emperor, he reformed the Chinese calendar using Western astronomical methods and manufactured artillery for the court. Despite facing severe court intrigues and political opposition during the Oboi regency, Schall von Bell played a p...