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1890
The United States completes the transcontinental railroad, greatly enhancing economic and military connectivity across the nation. -
1893
The World's Columbian Exposition in Chicago showcases the technological and industrial might of the United States to a global audience -
1895
The US Navy acquires its first modern battleship, USS Maine, reflecting a growing naval ambition. -
1898
The Spanish-American War erupts, with the US victorious in a short conflict that expands its territorial holdings to include Puerto Rico, Guam, and the Philippines. -
1899
The United States annexes the Samoan Islands, further extending its Pacific influence. -
1900
The Open Door Policy is announced, asserting the US's commitment to equal trade opportunities in China, marking the beginning of its engagement in Asia-Pacific affairs. -
1901
Theodore Roosevelt becomes President of the United States, advocating for a strong foreign policy and naval expansion. -
1903
The Wright brothers achieve the first powered, controlled flight, marking a significant milestone in aviation that later contributes to US military superiority. -
1904
The US Navy launches its first all-steel battleship, USS South Carolina, reflecting advances in naval technology. -
1905
The Roosevelt Corollary to the Monroe Doctrine is announced, asserting the US's right to intervene in Latin American affairs to maintain stability and prevent European intervention. -
1906
The US acquires the Danish West Indies (later renamed the US Virgin Islands) as a strategic naval base in the Caribbean. -
1907
The US intervenes in the Nicaraguan civil war to protect its interests in the region, establishing a precedent for future military interventions. -
1912
The US Navy commissions its first aircraft carrier, USS Langley, converting a collier ship into an aircraft-carrying vessel, laying the foundation for future naval aviation. -
1913
Woodrow Wilson becomes President of the United States, emphasizing international cooperation and diplomacy in foreign affairs. -
1914
The outbreak of World War I sees the United States initially adopt a neutral stance, but its industrial might and economic output have a significant impact on the global war effort, supplying weapons and resources to the Allies.