The name of the western half of Tokyo (excluding the islands), excluding the wards, refers to the three Tama districts of Nishitama, the former Kitatama, and the former Minamitama. Formerly part of Kanagawa Prefecture, it was incorporated into Tokyo Prefecture in 1893 (Meiji 26). There was also Higashitama District, but it merged with Minamitoshima District in 1896 to form Toyotama District, which was incorporated into Tokyo City in 1932 (Showa 7). It spreads from the Kanto Mountains to the Musashino Plateau, and many areas of the plateau were developed as new rice fields during the Edo period. Following the Great Kanto Earthquake, the high, dry plateau was urbanized as residential areas, and especially after World War II, rapid urbanization led to the establishment of many satellite cities, and Kitatama District disappeared in 1970 (Showa 45), and Minamitama District disappeared in 1971. Currently, Nishitama District has three towns and one village. [Kiyoshi Sawada] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
東京都(島嶼(とうしょ)部を除く)のうち区部を除く西半部の地名で、西多摩、旧北多摩、旧南多摩の三つの多摩郡をさす。もと神奈川県に属し、1893年(明治26)東京府に編入された。なお東多摩郡もあったが、1896年南豊島(みなみとしま)郡と合併して豊多摩郡(とよたまぐん)となり1932年(昭和7)東京市に編入された。関東山地から武蔵野(むさしの)台地に広がり、台地は江戸時代に新田集落として開発されたところが多い。関東大震災を機として、高燥な台地面は住宅地として都市化が進み、とくに第二次世界大戦後は急激な都市化によって多くの衛星都市が成立、1970年(昭和45)北多摩郡、1971年南多摩郡が消滅した。現在、西多摩郡の3町1村がある。 [沢田 清] 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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