Meanings

pre-Jomon period (i.e. the preceramic period)

Dynastic period (the Nara period and esp. the Heian period, characterized by the rule of the emperor as opposed to shogunate)

Three Kingdoms period (of Chinese history, 220 CE-280 CE)

Rashidun period (period of the Rightly Guided Caliphs; 632-661 CE)

Great Interregnum (period of the Holy Roman Empire; approx. 1254-1273)

Hakuhō period (esp. used as a period of art history, approx. 645-710 CE)

Yoshino period (Japan's Northern and Southern Courts period, esp. from the viewpoint of the legitimacy of the Southern Court, 1336-1392)

Azuchi period (first half of the Azuchi-Momoyama period, 1568-1582)

Keien period (between the end of the Russo-Japanese War and the Taisho Political Crisis, approx. 1905-1912)

Spring and Autumn period (of Chinese history; approx. 770-403 BCE)

Chalcolithic

Age of Discovery

Age of Discovery

Yoshino period (Japan's Northern and Southern Courts period, esp. from the viewpoint of the legitimacy of the Southern Court, 1336-1392)

preceramic period

Edo-period literature

Metal Age (i.e. the Bronze Age and the Iron Age)

Fujiwara period (esp. used as a period of art history, approx. 894-1185 CE)

Suiko period (i.e. the Asuka period, esp. under the reign of Empress Suiko, approx. 592-628 CE)

sometime