Temporary caves and tents. The reason they were temporary was because they had to go look for food in other places
The answer will be Ahimsa
The answer is yes. The Greco-Roman legal tradition continue to have a strong positive influence on modern law and society. They greatly influenced the modern world with the creation of laws, development of democratic government practices, influences in languages, literature, arts, infrastructure, and city planning.
The Tang dynasty fostered the most advanced trade network of the four.