Following the civil war, african americans in the south

In the war, both sides used African Americans for military purposes; in the South as slave labor and in the north as wage labor and military volunteers. Over 100,000 ex-slaves fought for the Union and over 500,000 fled their plantations for Union lines.

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.

continental currency was denominated in dollars from $​1⁄6 to $80, including many odd denominations in between.