Four of the earliest civilizations would include Mesopotamia, Ancient Egypt, Indus Valley, and Ancient China.
Answer: The reason it wasn't cold because it was an expression of the cold war, and plus it was mainly because so many people was dying and the war lasted a long time.
Explanation:
<span>The compromise of 1850 turned out to be a misguided attempt to bury the issue of slavery. Even though it brought the country together at first, the results didn't last. The North wasn't on board because the Fugitive Slave Law required that they help return any and all runaway slaves.</span>
It was the completion of the Northern Pacific Railroad that mostly changed the feelings toward Chinese workers in Washington because the rail lines were so popular.