Have you ever heard the terms “Meiji era,” “Shōwa,” or “Reiwa” and wondered what they really mean? In Japan, time is not just counted — it is named. Each era has a unique name, chosen with extreme care, symbolizing the spirit of the time and aspirations for the future. This tradition, called Gengō (元号), transforms the calendar into a cultural narrative.
In this article, we will walk from the first official era to the current era, discovering the meaning of each name, the reason for the choice, and what it says about Japan at that time. Get ready, because this is an intense journey through history encoded in two ideograms at a time.
Table of Contents
Asuka Period (538–710)
Taika (大化) – “Great Reform”
The first official era of Japan, which began in 645. “Taika” marks the beginning of the centralization of power under Emperor Tenji, with profound administrative reforms known as the Taika Reforms. The choice of name reflected this movement of rupture and reconstruction. Dai (大) means “great”; ka (化) is “transformation.” A name that perfectly summarizes the ambition of the moment.
Hakuchi (白雉) – “White Pheasant”
Used between 650 and 654, it received this name after a white pheasant was offered to the emperor, considered a sign of good omen. Haku (白) means “white,” and chi (雉) is “pheasant.” An example of how natural phenomena influenced political decisions.
Nara Period (710–794)
During this period of fixed capital in Heijō-kyō (present-day Nara), Japan formalized the regular use of eras.
Wadō (和銅) – “Pacific Copper”
Adopted in 708, with the discovery of pure copper in Japan. Wa (和) is an ancient name for Japan, also translated as “harmony”; dō (銅) means “copper.” The name united national identity and economic prosperity.
Tenpyō (天平) – “Celestial Balance”
Used between 729–749. Ten (天) means “heaven” and pyō (平), “balance or peace.” It reflected the Buddhist ideal and the desire for spiritual and social stability under the rule of Emperor Shōmu.
Tenpyō-kanpō (天平感宝) – “Heaven, Peace, and Sensitive Treasures”
This variation lasted only a few months. It shows how certain names were attempts to correct or bless difficult periods, often due to superstition.
Heian Period (794–1185)
The era of aesthetic refinement and court culture.
Kōnin (弘仁) – “Expanded Virtue”
Used from 810 to 824. It symbolized the desire for the expansion of morality and stability during the reign of Emperor Saga. The ideogram Kō (弘) means “expand,” and nin (仁) is “virtue,” an essential quality in Confucian values.
Jōgan (貞観) – “Correct Vision”
From 859 to 877. A time of stability, marked by culture and Buddhism. The name reflects the pursuit of morality and just governance.
Kamakura Period (1185–1333)
With the shogunate established, the emperor still named the eras, but politics was dominated by warriors.
Bunji (文治) – “Governance by Culture”
1190 to 1199. The ideogram Bun (文) is “letter” or “culture,” and ji (治), “to govern.” It represented an attempt to rebalance power between arms and knowledge.
Kenji (建治) – “Establishment of Governance”
Used from 1275 to 1278. Indicates the effort to restore imperial authority in times of tension with the Hōjō clan.
Muromachi Period (1336–1573)
Ōei (応永) – “Eternal Response”
Used for 35 years (1394–1428), one of the longest. A sign of relative stability. Ō (応) is “response,” ei (永) is “eternity.” It was an expression of governmental continuity and stability after years of war.
Bunmei (文明) – “Civil Illumination”
1469 to 1487. Even amid internal wars, the name aspired to cultural elevation. With bun (文) for culture and mei (明) for clarity, it reflected the desire for civility in an unstable time.
Sengoku Period (1467–1573)
Despite the chaos, the names remained symbolic.
Eishō (永正) – “Durable Peace”
1504 to 1521. A clear attempt to bring hope amid war. An almost ironic name for an era of constant battles between feudal lords.
Tenbun (天文) – “Celestial Phenomenon”
1532 to 1555. Reflects the connection of heaven with political destiny. A name with astrological weight, typical of a time when heavens and wars were inseparable.
Azuchi-Momoyama Period (1573–1603)
Tenshō (天正) – “Celestial Justice”
It was under the command of Oda Nobunaga that the name Tenshō emerged, in 1573. Hideyoshi maintained it during his consolidation of power. The chosen kanji say it all: Ten (天) represents heaven or divine order; shō (正) is justice, correction. In a full era of conflicts and forced unification, the name acted almost as a seal of approval from the heavens for military campaigns.
More than symbolism, it was propaganda. Each victory over rivals could be seen as fulfilling a celestial justice. The name was chosen with political intent, not just spiritual.
Edo Period (1603–1868)
With the Tokugawa shogunate established, the names of the eras began to reflect stability, rigidity, and cultural prosperity. Even with long and peaceful periods, the name of each era carried an ideal that the government wished to propagate.
Kan’ei (寛永) – “Serene Eternity”
Adopted between 1624 and 1644, the name symbolized a stable government with absolute authority. Kan (寛) means “serenity” or “tolerance”; ei (永) is eternity. A name chosen to provide tranquility to the population and reinforce Tokugawa’s rule as legitimate and permanent.
It was in this era that Japan closed itself off from the world (sakoku), and internal peace was maintained with an iron fist. The name of the era was a constant reminder: everything was under control, and it would be so for a long time.
Genroku (元禄) – “Original Prosperity”
This era, from 1688 to 1704, is remembered as a true boom of culture. Kabuki, ukiyo-e, haikai, and the life of pleasure districts flourished. Gen (元) is origin or foundation; roku (禄) means blessing or wealth. The name carried the idea of an era of wealth born from the solid foundation established.
It is no coincidence that many historians and artists consider Genroku the cultural peak of the Edo era. Prosperity was not only economic but also aesthetic and emotional.
Meiji Era (1868–1912)
Meiji (明治) – “Enlightened Government”
This marked the end of feudal Japan. The Meiji Restoration returned power to the emperor and transformed the country in record time. The name of the era — Mei (明), “enlightenment,” and ji (治), “to govern” — was chosen to reflect exactly that: a new type of leadership, more rational, modern, and looking to the future.
Everything changed: clothing, calendars, political system, literacy. And the name Meiji functioned as a banner of a revolution that transformed the archipelago into a power.
Taishō Era (1912–1926)
Taishō (大正) – “Great Rectitude”
Although brief, it was an era of liberalism and urban growth. Tai (大) is “great”; shō (正) is the same “correct” or “just” from other eras. The name invoked a moral leadership, perhaps more desired than real.
While Emperor Taishō was fragile in health, the name of the era served as an ethical anchor for democratic movements and political openness. The term became a symbol of “Taishō democracy” — short but significant.
Shōwa Era (1926–1989)
Shōwa (昭和) – “Illuminated Peace”
It began under tension and ended with prosperity. Shō (昭) is “to illuminate,” wa (和) is harmony, peace. A name that said a lot — or wished for a lot. At the beginning of the era, wars and authoritarianism marked the country. In the post-war period, came the “economic miracle” and the rise of modern Japanese culture.
It is interesting to observe how a name can mean one thing and experience the opposite, only to finally align with its purpose. Shōwa is duality in the form of an era.
Heisei Era (1989–2019)
Heisei (平成) – “Concretized Peace”
Hei (平) is “peace,” sei (成) is “to achieve,” “to realize.” The name was chosen to represent the desire for peaceful continuity after a troubled century. The intention was great — but Heisei was marked by a stagnant economy, natural disasters, and accelerated social changes.
Still, many Japanese see Heisei as an era of emotional transition: from post-war ambition to the acceptance of a new reality. Less growth, more introspection.
Reiwa Era (2019–present)
Reiwa (令和) – “Beautiful Harmony”
The first name taken from a Japanese text, the Manyōshū. A symbolic break. Rei (令), in this context, represents “excellence” or “good order”; wa (和) continues as “harmony.” The goal is to guide the country towards a beautiful coexistence between tradition and future.
The choice was bold. Instead of turning to China, Japan turned to its own classical literature. It is an era of identity affirmation, even amid a health crisis and the advance of AI. The name remains a reminder that balance and aesthetics still matter.
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