Japan

Jomon 10,000 BC-300 BC
Yayoi 300 BC-300 AD
Kofun (Tumulus) 300-650
Asuka(Suiko) 550-710
Nara 645-794
Early Nara (Hakuho) 645-710
Late Nara (Tempyo) 710-794
Heian 794-1185
Early Heian (Jogan) 794-897
Late Heian (Fujiwara) 897-1185
Kamakura 1185-1333
Nambokucho 1336-1392
Muromachi (Ashikaga) 1336-1573
Momoyama 1573-1615
Edo (Tokugawa) 1615-1868
Early Edo 1615-1716
Kambunera 1661-1673
Genroku era 1688-1704
Late Edo 1716-1868
Meiji 1868-1912
Taisho 1912-1926
Showa 1926-1945
Heisei 1989

Korea

Three Kingdoms 57 BC-668 AD
Paekche 18 BC-663 AD
Koguryo 37 BC-668 AD
Old Silla 57 BC-668 AD
Silla Dynasty 668-935
Koryo Dynasty 918-1392
Yi Dynasty 1392-1910
Choson Dynasty 1910-1945