Sima Guang
Sima Guang (Chinese: 司馬光; pinyin: Sīmǎ Guāng; 17 November 1019 – 11 October 1086), courtesy name Junshi (Chinese: 君實; pinyin: Jūnshí), hao Yusou (Chinese: 迂叟; pinyin: Yūsŏu), was a Chinese historian, politician, and writer. He was a high-ranking Song dynasty scholar-official who authored the Zizhi Tongjian, a monumental work of history.