Index of Eras「元号の一覧」

From 1467 to 1603, a total of sixteen eras spanned the Sengoku and Azuchi-Momoyama periods, beginning with the Ōnin era and ending with the Keichō era (which extended until 1615 in the early Edo period).  The change in the name of one era to the next was determined on the basis of consultations between the Imperial court and the Muromachi bakufu, corresponding to changes in the reign of emperors as well as war and calamities.  The changes also took account of the sexagenary cycle, a cycle of sixty terms used for reckoning time in China and the rest of the East Asian cultural sphere in these periods.

Following is an index of the eras during the Sengoku and Azuchi-Momoyama periods highlighting key events and battles as well as births and deaths of notable persons. 

EraDates元号
Ōnin1467-1469応仁
Bunmei1469-1487文明
Chōkyō1487-1489長享
Entoku1489-1492延徳
Meiō1492-1501明応
Bunki1501-1504文亀
Eishō1504-1521永正
Daiei1521-1528大永
Kyōroku1528-1532享禄
Tenbun1532-1555天文
Kōji1555-1558弘治
Eiroku1558-1570永禄
Genki 1570-1573元亀
Tenshō 1573-1593天正
Bunroku 1593-1596文禄
Keichō 1596-1615慶長