The first half of his life
Sugawara no Michizane was born in June 25th, 845 in the Heian period.
The Sugawara family was said to be descendants of Amanohohi-no-mikoto, and served the Imperial coart as scholars. The heads of the family held a private school called "Kanke-rōka", which produced eminent scholars.
Michizane was also good at studying. He was a talented child, able to compose a Waka at the age of 5, and Kanshi, Classical Chinese poetry, at the age of 11. Michizane passed the entrance exam for Daigaku-ryō, the national academy to train government officials, and became a Monjō-shō when he was 18.
5 years later, he became Monjō-tokugōshō, a rank only two of the Monjō-shō are chosen to become. After holding several government posts, appointed to Monjō-hakase, the highest rank of a scholar, when he was 33. Also, when his father, Sugawara no Koreyoshi died when he was 37, he took over the Kanke-rōka, and eventually became the leader of the literary circles.
When he was appointed to be governor of Sanuki Province, in 886, he lamented that this is a demotion, but it is said he did his duties with energy. While serving as governor of Sanuki Province, Emperor Kōkō died and Emperor Uda assumed the throne. But an imperial rescript he ordered Sa-daiben Tachibana no Hiromi to issue caused a conflict between Emperor Uda and Fujiwara no Mototsune, the Daijō-daijin, Chancellor, and Mototsune abandoned all his government business. Michizane sent a letter saying the Fujiwara clan will gain nothing from continuing this conflict, and Mototsune ended this conflict. This conflict called "Akō Incident" served as a clear reminder of the great influence the Fujiwara clan had over the imperial coart.