Congress passed the interstate commerce act (1887) and the Sherman antitrust act (1890) in response to
1. foreign influences on the united states economy
2. public demand for better roads
3. monopolistic practices that were harmful to small business
4. the failure to federal banks to provide loans to individuals

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.

b. a system of government that provided a model for the united states.