Japanese era name

A Japanese calendar era name designates a period whose years are numbered from its start. Since 1868, each era has been associated with one emperor’s reign.

Japanese calendar: A calendar system used in Japan that combines the Gregorian calendar with traditional era-year numbering. Era names supply the starting points for its era-year dates.
Taika era: A Japanese era beginning in 645, commonly cited as the earliest named era in the traditional sequence. Its name illustrates the early use of era designations in Japan.
Emperor Meiji: The 122nd emperor of Japan, whose reign lasted from 1867 to 1912. His reign became the model for linking a modern era to one emperor.
Heisei era: The Japanese era from 1989 through 2019, associated with Emperor Akihito’s reign. Its end demonstrated the modern era change following an emperor’s abdication.
Japanese imperial era system: Japan’s system of dating years by official era names and their year numbers. It is the broader dating framework that Japanese era names belong to.
Era year: A year numbered from the beginning of a Japanese era, with its first year called gan-nen. It expresses a date by counting from the current era’s start.
Japanese calendar reform: Changes to Japan’s calendar system that altered how dates and years were reckoned. Calendar reforms reshaped the systems in which era names were used.
Emperor Akihito: The 125th emperor of Japan, who abdicated in 2019. His abdication ended the Heisei era and prompted the Reiwa transition.
Reiwa era: The Japanese era that began on May 1, 2019, with Emperor Naruhito’s accession. It is the current example of the era-name system.
Japanese zodiac calendar: A traditional Japanese cycle assigning one of twelve animals to each year. It cycles independently rather than naming periods tied to an emperor.

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