The guess what be The Knights of labor *not sure if this is 100% correct*.
Answer:
Homes in villages were buried partly underground with straw-covered roofs. Walls were built to protect settlements from flooding and hostile neighbors.
A wall at the border between the US and Mexico would be designed to prevent people from entering the United States illegally.That’s because walls work. It is a protective infrastructure that deters unlawful border crossings and other illegal activity where our natural barriers — such as rivers, mountains, and other impassable terrain — do not exist.
Answer:
Rwanda genocide happened in Rwanda, 1994
Explanation:
Superior manpower, industry, access to trade, finances, leadership, and more.