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Imperialism Era Began
The Imperialism Era Began in 1798. -
Monroe Doctrine
On December 2nd 1823, the Monroe Doctrine was introduced. It stated that further efforts by European nations to colonize land or interfere with states in North or South America would be viewed as acts of aggression, requiring U.S. intervention -
Treaty of Guadalupe
The Treaty of Guadalupe Hidalgo (signed February 2nd 1848) is the peace treaty signed in Guadalupe Hidalgo between the U.S. and Mexico that ended the Mexican–American War (1846–48). -
Treaty of Peace and Amity
The treaty opened the Japanese ports of Shimoda and Hakodate to United States trade and guaranteed the safety of shipwrecked U.S. sailors; however, the treaty did not create a basis for establishing a permanent residence in these locations. -
Influence of Sea Power
The Influence of Sea Power Upon History: is a history of naval warfare written in 1890 by Alfred Thayer Mahan. It details the role of sea power during many times including parts of Imperialism. -
USS Maine Sinks
The Battleship Maine is destroyed in Havana harbor, killing 260 of its crew. The Ship sunk near Havana Cuba, and the blame was towards the Spanish. -
Teller Amendment
The Teller Amendment was an amendment to a joint resolution of the United States Congress, enacted on April 20, 1898, in reply to President William McKinley's War Message. It placed a condition on the United States military's presence in Cuba. According to the clause, the U.S. could not annex Cuba but only leave "control of the island to its people." -
Hawaii Annexation
The Hawaiian Annexation treaty is signed by McKinley. -
Treaty of Paris
The Treaty of Paris, was an agreement made in 1898 that resulted in Spain surrendering control of Cuba and ceding Puerto Rico, parts of the West Indies, Guam, and the Philippines to the United States. -
China "Open Door Policy"
Secretary of State John Hay requests U.S. ambassadors to countries already having commerce, treaties, and long-term leases with China to ask for an "open door" policy by which all nations receive equal treatment from China. -
Hawaii becomes part of the United States
On April 30th 1900, Hawaiians granted the United States citizenship and received full territorial status in 1900. -
Panama Canal (1904 - 1914)
On May 6, 1904, President Theodore Roosevelt appointed John Findlay Wallace, formerly chief engineer and finally general manager of the Illinois Central Railroad, chief engineer of the Panama Canal Project. It took 10 full years to build. -
Roosevelt Corollary
The Roosevelt Corollary is a corollary to the Monroe Doctrine that was stated by President Theodore Roosevelt in 1904. The corollary states that the United States will intervene in conflicts between European countries and Latin American countries to enforce legitimate claims of the European powers, rather than having the Europeans press their claims directly.
