to my knowledge no one really knows
Usualy Brick or Stone walls are built in china.
It was important for the mission walls to be built on rocks because so the walls could be stable.
An aboriginal hut is called a humpy or a gunyah.
The Aboriginal andTorresstrait Islanders
rockes
1800bc
Levee
Walls to keep out water are called dams and levees.
beacuse they built walls and they thought it was complet!
ostrich fetus
Emperor Nasi Goreng
They built strong thick walls around their cites for protection.