Kagen (嘉元): Japanese era name, August 1303–December 1306

Meaning and the nengō system

The word "nengō" refers to the era name system; in Japanese the term is often linked with the characters for "year" and a descriptive name. Kagen follows this tradition as a formal calendrical label used in official documents and court records. For a general introduction to the era-name system, see nengō, and for a literal explanation of the phrase often rendered "year name" see year name.

Historical context

Kagen falls within the late Kamakura period, when real political power often lay with the shogunate based in Kamakura and its regent families rather than with the imperial court in Kyoto. The emperor nominally held sovereignty while military and administrative decisions were strongly influenced by the shogunal government and the Hōjō regents. The period is characterized by the continuing development of warrior rule and the court's cultural activities.

Chronology and succession

• Preceding era: Kengen.
• Kagen began: August 1303.
• Kagen ended: December 1306.
• Following era: Tokuji.

Significance and records

Kagen is principally a chronological label used by historians and archivists to organize events and official acts of the early 14th century. Surviving court diaries, temple records and legal documents dated to Kagen help scholars trace family genealogies, land transactions and ceremonial observances. While not associated with a single famous incident that defines the era, Kagen provides a temporal frame that connects court life in Kyoto with the broader political realities of the Kamakura regime.

Legacy and usage

In modern historical writing, Kagen functions as part of the established sequence of Japanese era names. It helps place cultural developments, administrative changes and personal careers within a fixed chronology. Researchers consult era-based calendars when correlating Japanese dates with the Gregorian system, and Kagen is one of many short nengō that together map Japan's complex medieval timeline.

Note: Era names are formal calendrical terms; for further details on related eras see links to Kengen and Tokuji above. For broader context on the period and imperial reigns, historians examine both court records and Kamakura-period administrative sources.