正しょう長ちょうしょうちょうMeanings1nounShōchō era (1428.4.27–1429.9.5)A Japanese era name (年号) of the Muromachi period, lasting about one year. Used in historical contexts.正しょう長ちょうの土つち一いっ揆きは1428年ねんに起おこった。The Shōchō peasant uprising occurred in 1428.