Keywords
Architecture
Castles
The material used to build an earthen wall for a castle. This material must be harder than that used for residences in order to withstand bullets and arrows, and to ensure that when a part of the wall is destroyed, the rest remains stable. The earth wall is reinforced with round stalks of bamboo, laid vertically and horizontally. The vertical bamboo stalks are thick; their tops, sharpened like spears, project from the top of the wall.