History quiz

This Chinese emperor wrote the most complete dictionary and ruled longer (sixty-one years) than any previous leader?

The correct answer is: Kangxi Emperor.

The Kangxi Emperor (1654–1722), also known as the Qing Shengzu Emperor, personal name Xuanye, was the longest-reigning Qing dynasty emperor, and the fourth Qing emperor overall, ruling from 1661 to 1722. In 1710 he ordered the compilation of the Kangxi Dictionary, the largest dictionary in Chinese history.