This paper studies about the naming of inner part of town blocks in early Edo period.
Cadastral registers at the end of the 16th century show that Oku(interior) was related to the scale of town block, Ura(back) was referred to the adjacent boundary and the neighboring boundary. On the title deeds were various at the first half of 17th century. It was represented as Ura, and as Oku, and written with size, and written without size. And it was represented as Ura at the 2nd half of 17th century. It is because the boundary can be done at inner part in town blocks by then.
