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Monroe Doctrine
The Monroe Doctrine was delivered to Congress by President Monroe. The doctrine declared against European colonization in the Western Hemisphere. -
Manifest Destiny
The 19th century doctrine or belief that the expansion of the US throughout the American continents was both justified and inevitable. -
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Mexico Pancho Villa
A Mexican Revolutionary general and one of the most prominent figures of the Mexican Revolution. -
Annexation of Hawaii
Hawaii was annexed when Queen Liliuokalani tried to restore the power of monarchy after the death of King Kalakua. -
Sinking of Maine
The United States battleship was suddenly blown up by a mine in Havana Harbor, which sunk the ship. The explosion and sinking of the ship killed 260 officers and men on board. This was the cause of the Spanish American war. -
Teller Amendment
An amendment for the use of U.S. military force to establish Cuban independence from Spain. -
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Spanish American War
The Spanish American war was a conflict between Spain and the United States. The war began when the USS Maine battleship exploded and sunk in Havana Harbor. As a result of the war, Spanish colonial rule ended in the Americas and resulted in U.S acquisition of territories in the western Pacific and Latin America. The Treaty of Paris ended the war. -
Annexation of Guam
In the Treaty of Paris, Spain ceded the Philippines, Puerto Rico, and Guam to the United States. -
Annexation Samoa
An agreement between colonial powers divided Samoa into spheres of influence. Germany gained control of the western islands, and the United States took the eastern islands. -
Open Door Policy
A policy of admitting people of all nationalities or ethnic groups to a country upon equal terms. -
Boxer Rebellion
A Chinese secret organization called the Society of the Righteous and Harmonious Fists led an uprising in northern China against the spread of Western and Japanese influence there. -
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Panama Canal
The United States built the Panama Canal as an easier way for commercial and military traffic between the Atlantic and Pacific oceans. -
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Russo Japanese War
A war between Russia and Japan over rival territorial claims. -
Treaty of Portsmouth
Ended the Russo Japanese war and marked the emergence of a new era of diplomatic negotiations.