Until the ancient times

There were many highland colonies that were a made fortress village, and, in Japan of the Yayoi period, there was it in the place where a moat colony or the mountain which surrounded the village with a moat were high, but declined as unification of the politics advanced.




The first interview in the documents of the castle included the invisible thing in documents in Mizuki (Mizuki) that the Emperor Tenji got in 664 in this time, and a lot of castles were made at the Inland Sea coast from North Kyushu. In addition, a barrier around a castle which I could write it in Tohoku region where war with the Ezo (I get it and look and do it) led to in the ninth century from the seventh century, and served as military affairs foothold and the administration footholds such as Tagajo or Dewa fence / the Akita castle was built.



These castles come from the concept of the castle wall city of the Sinicism and it was used as Kokufu, but substitutes it because castle wall building was low by building the fences. Law Code system collapses, and these castles begin to become outdated, and the thing which has begun to be built in the times of the samurai is the castle of the narrow sense as the battle foothold.