Japanese writing system
Post–World War II

The period immediately following World War II saw a rapid and significant reform of the writing system. This was in part due to influence of the Occupation authorities, but to a significant extent was due to the removal of traditionalists from control of the educational system, which meant that previously stalled revisions could proceed. The major reforms were:

At one stage, an advisor in the Occupation administration proposed a wholesale conversion to rōmaji, but it was not endorsed by other specialists and did not proceed.

In addition, the practice of writing horizontally in a right-to-left direction was generally replaced by left-to-right writing. The right-to-left order was considered a special case of vertical writing, with columns one character high, rather than horizontal writing per se; it was used for single lines of text on signs, etc. (e.g., the station sign at Tokyo reads 駅京東, which is 東京駅 from right-to-left).

The post-war reforms have mostly survived, although some of the restrictions have been relaxed. The replacement of the tōyō kanji in 1981 with the 1,945 jōyō kanji (常用漢字) —a modification of the tōyō kanji —was accompanied by a change from "restriction" to "recommendation", and in general the educational authorities have become less active in further script reform.

In 2004, the jinmeiyō kanji (人名用漢字), maintained by the Ministry of Justice for use in personal names, was significantly enlarged. The jōyō kanji list was extended to 2,136 characters in 2010.
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