Mainland Japan


Mainland Japan is a term to distinguish the area of Japan from its outlying territories. It was an official term in the pre-war period, distinguishing Japan and the colonies in East Asia. After the end of World War II, the term became uncommon, but still is used as an unofficial term to distinguish the area of Japan from the Ryukyu Islands or Hokkaidō.
The literal Japanese meaning might best be translated as inner Japan or inner lands. The term "mainland" is an inaccurate translation because mainland is usually the continental part of a region, as opposed to the islands.
It is also somewhat confusing as Mainland Japan is defined to consist of several major islands and many minor ones. The term mainland Japan is also sometimes used to translate Honshū, the largest island.

Historical usage

In the Japanese Empire of the pre-war period, naichi referred to the mainland of the empire. The other territories of the empire was called gaichi.
The Meiji Constitution's Article 1 of the Common Law enumerates the territories with legal jurisdictions namely:

Naichi

Naichi were the territories under direct control of the government. It consisted of the following:
These territories were called gaichi. They were part of the Empire of Japan, but not under direct control by the central government.
Although it has never been abolished, the Common Law lost effect from enforcement after Japan lost all the former colonies, or gaichi as a result of World War II.

Modern usage

The residents of Hokkaidō and Okinawa occasionally use naichi to refer to the "mainland", excluding these areas. The colloquial usage is officially "incorrect", as both areas are legally within naichi. In Hokkaidō, the official term that refers to Japan except Hokkaidō is Dōgai. With Dōgai becoming common even in colloquial use, naichi ceases to be used.
The term "main islands" is used for Hokkaido, Honshu, Kyushu, Shikoku and Okinawa. The other estimated 6,847 smaller islands are called 'remote islands'.