7th-century neologisms

Japanese era from July 645 to March 650

Japanese era from March 650 to November 654

, alternatively read as Suchō or Akamitori, was a after a gap following Hakuchi (650–654) and before another gap lasting until Taihō (701–704). This Shuchō period briefly spanned a period of mere months, June through September 686. The reigning sovereigns were and .