Manji

Overview

Manji (万治) was a Japanese era name (年号, nengō; "year name") that followed Meireki and preceded Kanbun. The era began on August 21, 1658, and ended on May 22, 1661. It falls within the Edo period (1603–1868), a time of Tokugawa shogunate rule and relative domestic stability.

The reigning emperor during Manji was Go-Sai-tennō (後西天皇). His reign spanned the entirety of the era, and the name change itself was tied to events in his court.

What Defined the Era

The Manji era opened in the shadow of the Great Fire of Meireki, which had devastated Edo in January 1657. That conflagration, named after the preceding era, killed tens of thousands and destroyed much of the shogunate's capital. The new era name was proclaimed in August 1658, partly as a ritual reset after a period of catastrophe.

The era's defining feature was reconstruction. The Tokugawa shogunate, under the fourth shōgun Tokugawa Ietsuna, oversaw the rebuilding of Edo's castle, bridges, and urban districts. The fire had exposed weaknesses in the city's layout, and planners widened streets and established firebreaks. This work continued through the Manji years and into the following Kanbun era.

The imperial court in Kyoto also shaped the era's character. Emperor Go-Sai, who had taken the throne in 1655, was a scholar with a deep interest in classical Japanese literature. His court maintained a careful relationship with the shogunate, and the era saw no major political rupture between the two seats of power.

Key Events

The most significant event of the Manji era was the ongoing rebuilding of Edo after the Great Fire of Meireki. The shogunate ordered the reconstruction of Edo Castle's main keep, which had burned in the disaster. Work on the castle's stone walls and towers proceeded through 1658 and 1659, and the central donjon was completed in 1659.

In 1660, the shogunate issued regulations aimed at fire prevention in Edo. These rules mandated wider streets, restricted the use of thatched roofing in dense neighbourhoods, and required storehouses to be built with fire-resistant materials. The measures were a direct response to the 1657 fire and shaped Edo's urban form for decades.

The era also saw the publication of the Manji Kan'ei Shoka Keizu Den, a genealogical compilation of samurai families. This work, produced in 1660, recorded the lineages of daimyō and hatamoto, serving as an official reference for status and succession. It reflected the shogunate's effort to codify the social order after the disruptions of the fire years.

Emperor Go-Sai's cultural activities marked the era as well. He sponsored poetry gatherings and engaged in the study of the Kokin Wakashū, an imperial anthology from the 10th century. His scholarly pursuits were noted by contemporaries and continued into his later years.

The Name in Japanese

The era name is written 万治 in kanji. Its kana reading is まんじ, and its romaji is Manji.

The first character is 万, read as man in this word. Its core meaning is "ten thousand" or "myriad." In era names and formal contexts, it conveys the idea of vast number, abundance, or permanence. The character is also used in modern Japanese for "10,000" and appears in compounds like 万年 (man'nen, "ten thousand years").

The second character is 治, read as ji here. Its primary meaning is "to govern," "to rule," or "to bring order." It appears in words such as 政治 (seiji, "politics") and 治安 (chian, "public order"). In the context of an era name, it signals peace, good governance, and the proper administration of the realm.

Together, 万治 can be understood as "myriad governance" or "rule over all things." The name carries an aspirational tone, suggesting a period of comprehensive order and stability. It fits the pattern of Edo-era nengō, which often paired characters denoting abundance with those denoting control or peace.

How the Era Name Works

A Japanese era name, or nengō, is a system of dating that counts years from the start of an imperial reign or a deliberate reset. The practice began in 645 with the Taika era and continued without interruption into the modern period. Each era name is chosen by the imperial court, often with input from scholars and officials, and is proclaimed by the emperor.

The era name changes on specific dates, not necessarily at the start of a calendar year. The Manji era began on August 21, 1658, and ended on May 22, 1661. A year within the era is expressed as "Manji 1," "Manji 2," and so on. The first year of an era often covers only part of a calendar year, as was the case with Manji 1, which ran from August 1658 to the end of that Gregorian year.

Era names were changed for several reasons. A new emperor's accession usually triggered a new era, but changes also occurred to mark auspicious events, to ward off misfortune, or to signal a fresh start after disasters. The proclamation of Manji in 1658 came after the Great Fire of Meireki, and the new name was part of a ritual response to that calamity.

The selection of an era name followed strict rules. The name had to consist of two kanji, carry a positive meaning, and avoid characters used in previous eras. The court drew from classical Chinese texts, and the chosen characters were meant to reflect the hoped-for character of the coming years. The system remained in force until 1868, when the Meiji era introduced the practice of one era per emperor, a rule that still applies today.