idk

Compromise of 1877 – Ended Reconstruction and federal troops withdrew from the South.

Haymarket Riot (1886) – Labor protest in Chicago that turned violent.

Pullman Strike (1894) – National railroad strike that disrupted commerce.

Spanish-American War (1898) – U.S. victory resulting in control over Cuba, Puerto Rico, Guam, and the Philippines.

Annexation of Hawaii (1898) – U.S. territorial expansion in the Pacific.

Open Door Policy (1899) – Ensured equal trading rights in China.

Panama Canal (1904–1914) – Engineering project to connect the Atlantic and Pacific Oceans.

Pure Food and Drug Act (1906) – Established regulations for food and medicine.

Triangle Shirtwaist Factory Fire (1911) – Industrial disaster leading to workplace safety reforms.

World War I (1914–1918) – U.S. entered in 1917; marked a shift in global power.

Zimmermann Telegram (1917) – German proposal to Mexico, contributing to U.S. entry into WWI.

Espionage and Sedition Acts (1917–1918) – Limited dissent during wartime.

Fourteen Points (1918) – Woodrow Wilson’s plan for post-war peace.

18th Amendment (1919) - Prohibition

19th Amendment (1920) – Granted women the right to vote.