Asuka late sixth century to 710 CE

Nara 710 to 794

Heian794 to around 1192

Kamakura 1192 to 1338

Muromachi. 1338 to 1568

Momoyama 1568 to (shall we say) 1600

Edo 1600 to 1868

Meiji (1868-1912),

Taishô(1912-1926)

Shôwa (1926-1989)

Heisei (1989-present).