Shōhō

Change of era

• 1644 Shōhō gannen: The era name was changed to Shōhō to mark the enthronement of the new emperor Go-Kōmyō. The previous era ended and a new one commenced in Kan'ei 21, on the 16th day of the 12th month.

  Events of the ''Shōhō'' era

• 1644 : The third major map of Japan was ordered by the Shogunate—the first having been completed in Keichō 10—at a scale of 1:432,000.
• May 18, 1645 : The Shōgun was elevated the court role of Middle Counselor.
• June 13, 1645 : Death of Miyamoto Musashi.
• December 1645 : Death of Takuan Sōhō, a leading figure in the Zen reform movement.
• January 18, 1646 : Death of Hosokawa Tadaoki.
• May 11, 1646 : Death of Yagyū Munenori.
• 1648 : The shogunate issues a legal code governing the lives of commoners in Edo.