Why did people live in larger communities during the neolithic age than in earlier times?

People choose to live in a larger community during Neolithic age than in earlier times because they required and needed a huge number of people for gathering and hunting. They had an enduring shelter, so people decided to attach to a different group so the communities getting bigger and bigger. And aside from that, they could grow sufficient foods to support more people one of this practice is farming.

when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.