This question needs no further explaining. This is all there is. (photo evidence)

What brought about the downfall of the Sumerians??

The Sumerians disappeared from history about 2000 B.C. as a result of military domination by various Semitic peoples

Explanation:

d

explanation:

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.