Crusading was dangerous and did kill hundreds, but the ones that came back had better knowledge of constructing buildings and machines. Cathedrals were made with stronger walls, which meant that they could have arches. They had beautiful stained-glass windows and metal bells. Castles were made of stone and were fairly comfortable. They had plumbing, not as new as humans have today, but there were pipes
Crusading was dangerous and did kill hundreds, but the ones that came back had better knowledge of constructing buildings and machines. Cathedrals were made with stronger walls, which meant that they could have arches. They had beautiful stained-glass windows and metal bells. Castles were made of stone and were fairly comfortable. They had plumbing, not as new as humans have today, but there were pipes