Major Eras in US History By madisonssmith Period: Jan 1, 1865 to Dec 1, 1890 Westward Expansion Jefferson believed in order for America to prosper we had to expand our land, farms and power. This pushed people westward and many sought for new opportunities. Period: Jan 1, 1877 to Dec 31, 1900 The Gilded Age Age of rapid economic growth, America began to surpass the world in wealth and success. Period: Jan 1, 1898 to Dec 31, 1914 US Imperialism The economic, military and cultural influence the US had on the rest of the world. Period: Jan 1, 1900 to Dec 31, 1919 Progressive Era A period of lots of social activism and political reform. Period: Jan 1, 1914 to Dec 31, 1918 World War I Centered in Europe, first world war. Period: Jan 1, 1920 to Dec 31, 1929 The Roaring 20s A period of sustained economic prosperity. Period: Jan 1, 1929 to Dec 31, 1941 Great Depression The longest and worst economic downfall in America's history. Period: Jan 1, 1939 to Dec 1, 1945 World War II The second world war involved all the great powers, divided between Allies and Axis. Period: Jan 1, 1945 to Dec 1, 1991 The Cold War After WWII a state of political and military tension between the Allies and Communist Axis countries. Spread fear of Communism throughout America. Period: Jan 1, 1954 to Dec 1, 1968 Civil Rights Movement African Americans effort for equality and to end segregation. Period: Jan 1, 1954 to Dec 1, 1975 Vietnam War During the Cold War era US enters Vietnam in order to stop and prevent the spread of Communism. Period: Jan 1, 1970 to Dec 1, 1999 Late 20th century During the Late 20th Century there was major inflation, the oil crisis, conservative resurgence and an increase in development and accessibility of technology. Period: Jan 1, 2000 to Feb 1, 2016 US in the 21st Century So far we entered the war on terror after 9/11, entered a recession, elected Obama the first black president and smart phones were created.