The answer to this question is tribes
The Invention of Farming lead to the creation of river valley civilizations by making it so the civilization could live in these places and have food. The basic concept of river valley farming is that when the river tide goes up, then the soil becomes very fertile and you plant the crops.
Answer:
Atomic Bombing of Hiroshima and Nagasaki
Even after the Allied victory in Europe, World War II continued to rage in the Pacific Theater. American forces had made a slow, but steady push toward Japan after turning the course of the war with victory at the June 1942 Battle of the Midway
Stone Age was the stage of prehistoric development
Answer: The Donner party left Springfield, Illinois, in April 1846. Led by two wealthy brothers, Jacob and George Donner, the emigrants initially followed the regular California Trail westward to Fort Bridger, Wyoming. From there, however, the emigrants decided to leave the established trail and take a new and supposedly shorter route to California laid out by an unscrupulous trail guide named Lansford Hastings. Hastings was not at Fort Bridger at the time–he was leading an earlier wagon train along his new route. He left word for the Donner party to follow, promising that he would mark the trail for them.
Explanation: not sure but hope it helps