What countries where involved in the berlin wall

What two important inventions did the people from this region share with society?

Answerwho is the first goverment en united state

This law states that the "chinese laborers to this country endanger the good order of certain localities" in the united states. which of these would represent a "locality" that would most likely have wanted this law created and passed? a) dallas b) chicago c) atlanta d) san francisco