Japan has seven historical eras. Here is the country's
sequential era and sub-areas: Early Historical Period (Asuka/Nara
and Heian Period); Medieval Period (Kamakura and Moromachi Period);
Early Modern Period (Momoyama and Edo (Tokugawa) Period); Edo
Period (Kan' ei, Meiriki, Manji, Kanbun, Enpo, Tenna, Jokyo,
Genroku, Shotoku, Kyoho, Horeki, Meiwa, An' ei, Tenmei, Kansei,
Bunka, Tenpo); and the Modern Period (Meiji Restoration).