Ishitsujiyaku - Ishitsujiyaku

...The construction was based on a standard of one sun (about 3 cm) in length per tan (about 992 m2) of land, and local sandstone, granite, pegmatite (megacrystalline granite), basalt, etc. were used as stone materials. The duties of constructing and repairing these stone fortifications were called ishitsukijiyaku, and the duties of guarding them were called ikoku kegobanyaku. Ishitsukijiyaku was mainly carried out by Kyushu gokenin at the command of the shugo, and when their share of the construction was completed, a certificate called ishitsukijiyaku fukanjo was issued by the shugo....

*Some of the terminology used in reference to "Ishitsuki Jiyaku" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…築造には所領1段(約992m2)につき長さ1寸(約3cm)という基準があり，その石材としては，近辺の砂岩，花コウ岩，ペグマタイト(巨晶花コウ岩)，玄武岩などが使われている。この石築地を築造･修理する課役を石築地役といい，石築地を警固する課役を異国警固番役と称した。石築地役は，守護の命令で，主として九州の御家人によって担われ，負担分の築造が完了すると，石築地役覆勘状という証明書が守護によって発行された。…

※「石築地役」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報