1.
Late 1800s to Early 1900s - time characterized by increased industrialization, urbanization, and Westward expansion
2.
1890s to the 1920s - period of political and social reform
3.
1880s-1914 - period where US competed with other colonial powers to seize control over many territories, mainly in Latin America and Asia
4.
1919-1929 - era after WWI characterized by consumerism and tension between traditionalists and those wanting change
5.
1929-1939 - period of economic crisis and government response with New Deal programs
6.
1939 - 1945 - A war fought in Europe, Africa and Asia between the Allied Powers of Great Britain, France, the Soviet Union, and the United States against the Axis Powers of Germany, Italy, and Japan.
7.
1945-1991 - the power struggle between the Soviet Union and the United States after World War II
8.
1950s-1960s - period when the federal government, responding to grassroots social activism, took significant action to dismantle the Jim Crow system of racial and ethnic segregation
9.
1970s-1990s - period characterized by a focus on traditional values and the shift to trickle-down economics while also seeing major shifts in computer technology
10.
2000s - now - characterized by post-9/11 politics, healthcare debates, social media influence and concerns of personal and economic security
