CORRECT ANSWER = 1840.  (8 points)

The Opium War was waged around the year 1840 against China. The resulting government, the Kuomintang, banned Chinese medicine altogether for a number of years following the Opium War. In spite of these setbacks, TCM and acupuncture/moxibustion remained popular among the broad masses of Chinese, and spread of Japan and other Asian countries.