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Japanese Esperanto Institute

Logo: jei.or.jp3

Esperanto language center in Japan

The Japanese Esperanto Institute (Esperanto: Japana Esperanto-Instituto; Japanese: 日本エスペラント協会, Nihon Esuperanto-Kyokai) or JEI is the largest center of the Japanese Esperanto movement.2 It was founded by Ossaka Kenji.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1919Founded1

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Sidejo de JEI
Photo: NMaia, CC BY-SA 4.0, via Wikimedia Commons5

The Japanese Esperanto Institute (Esperanto: Japana Esperanto-Instituto; Japanese: 日本エスペラント協会, Nihon Esuperanto-Kyokai) or JEI is the largest center of the Japanese Esperanto movement.2

The story

Founded by Ossaka Kenji in 1919.1

The Japanese Esperanto Institute was founded in 1919, mainly by Osaka Kenzi. Its official headquarters are in Tokyo, on Waseda Avenue.

It is the national affiliate of the World Esperanto Association. Its premises include a library, bookshop, classrooms and archives. It has over 1,300 members. There are 80 local Esperanto clubs in Japan. The Institute publishes the journal La Revuo Orienta ("The Oriental Review").

One of its first directors was Ōishi Wasaburō, the discoverer of the strong upper air currents known as jet streams.

From Wikipedia’s article on Japanese Esperanto Institute, shared under CC BY-SA 4.0.4

Leadership

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Timeline

  1. 1919Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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