First Day Cover commemorating the inauguration of the atomic reactor at National Tsing Hua University in Hsinchu, Taiwan. The stamp and envelope feature several illustrations of the reactor, which was completed on April 13, 1961 and is considered a landmark in China's history of nuclear research. National Tsing Hua University was established in Beijing in 1911 as “Tsing Hua Academy.” In 1956, the university was re-established at its present location in Hsinchu, Taiwan.