1891
Hawaiian Queen Liliuokalani ascends the throne
1893
World's Columbian Exposition held in Chicago
1893
Hawaiian coup by sugar growers
1898
Sinking of the USS Maine
1898–99
Spanish-American War
1898
Annexation of the Hawaiian Islands
1898
Puerto Rico seized from Spain
1899
American Samoa acquired
1899–1902
Philippine-American War
1901
Theodore Roosevelt becomes president
1902
Chinese Exclusion Act extended
1904
Roosevelt corollary, gives the right to intervene in Latin America
1904–06
U.S. intervenes in Nicaragua, Guatemala, and Cuba
1908
U.S. Marines intervene in Panamanian election cont
1910
Mexican Revolution begins
1910–20
One million Mexicans enter the U.S.
1911
U.S. interests protected in Honduran civil war
1911
Frederick Winslow Taylor writes The Principles of Scientific Management
1911
U.S. intervenes in Nicaragua
1914
The Panama Canal opens
1914–18
World War I
1915
U.S. occupies Haiti
1916
Mexico intervention
1916–24
Marines occupy Dominican Republic
1917
The Russian Revolution
1917
Immigrants from India, Indonesia, and the Arabian
Peninsula restricted from entering U.S.
1917
War Industries Board formed
1919
Red Scare and Palmer raids
1920
First commercial radio broadcast
1924
Immigrants from Korea and Japan restricted from
entering U.S.
1927
Sacco and Vanzetti executed
