Sugawara no Michizane, aka Tenman Tenjin (845-903), was a scholar, poet, and high-level administrator in the Japanese court during the Heian Period. Badly treated and exiled, he would gain a spectacular revenge on his political rivals from beyond the grave when he was deified following a series of disasters thought to be a product of Tenjin's anger. He became the patron god of scholarship and education, and a shrine was built in his honour at Kyoto, the then capital.
This is a companion discussion topic for the original content at https://www.worldhistory.org/Tenjin/.