7.5/6

Erupted in Europe in July 1914 after the assassination of Archduke Franz Ferdinand.
Two coalitions formed:
- Triple Entente (Allied Powers): Britain, Russia, and France.
- Triple Alliance (Central Powers): Germany, Austria-Hungary, and Italy.
The U.S. maintained neutrality initially.
Events leading to U.S. involvement:
- Sinking of the Lusitania in 1915: German submarines sunk the passenger ship, killing 128 Americans.
- German unrestricted submarine warfare: Germany resumed sinking ships in the war zone.
- Zimmerman Telegram: Germany solicited Mexico to start a war with the U.S.
U.S. declared war on Germany on 04/02/1917.
American Expeditionary Forces (AEF) commanded by John Pershing.
The war ended on 11/11/1918 with the Treaty of Versailles.
Woodrow Wilson proposed the Fourteen Points, including the League of Nations.
Congress refused to ratify the Treaty of Versailles due to concerns about the League of Nations.

World War I was a total war, mobilizing economic, industrial, and social resources.
Wartime agencies were established (War Industries Board, Food Administration).
Migration from rural to urban areas for work.
The Espionage Act and Sedition Act restricted civil liberties.
- Schenck versus the United States upheld restrictions on free speech during wartime.
The federal government suppressed reports on the severity of the Spanish Flu.
The Red Scare: Anti-communist sentiment and fear of infiltration after the Russian Revolution.
- Palmer Raids: Mass arrests and deportations of suspected radicals.
Immigration restrictions: Emergency Quota Act of 1921 and National Origins Act of 1924.
The Great Migration: Southern black population migrated to Northern urban centers.
- Reasons: escaping Jim Crow laws and seeking job opportunities.
- Experienced discrimination in the North.
- Race riots, including the Tulsa Race Massacre in 1921.