Eras

1929-1939

• Progressive Era

• WWII

• Cold War

• Great Depression

1870-1900

• Progressive Era

• Gilded Age

• American Expansionism/Spanish American War/Imperialism

• Cold War

Answer explanation

The time period of 1870-1900 is commonly referred to as the Gilded Age in American history. This is the era of problems, such as political machines, monopolies, rapid industrialization.

1898-1914

• War on Terror/Afghanistan

• Gilded Age

• Expansionism/Spanish American War

• Civil Rights

1954-1968

• Civil Rights

• Gilded Age

• Expansionism/Spanish American War/Imperialism

• The Jazz Age

1914-1918

• Progressive Era

• World War I

• Great Depression

• Cold War

1945-1991

• World War II

• Great Depression

• Cold War

• Progressive Era

1900-1920

• Civil Rights

• Great Depression

• Cold War

• Progressive Era

2001-Present

• War on Terror

• Cold War

• Information Age

• Global Financial Crisis

Answer explanation

The correct choice is 'War on Terror' as it aligns with the time period of 2001-Present, marked by global counterterrorism efforts after the 9/11 attacks.

1964-1974

• Vietnam War

• World War II

• Progressive Era

• Gilded Age

1941-1945

• Cold War

• Great Depression

• World War II

• Progressive Era