There are a lot, the question needs to be more specific.
Some include:
The American Civil War
The War of Independence
The Space Race
Development of Nuclear Power
etc.
It is a historical event (in the past)
American Revolution.
Both refer to a length of time that begins with a change or event that affects many people.
Both refer to a length of time that begins with a change or event that affects many people.
Porn
Historical context
the industrial revolution
the civil war
The war in Iraq, the oil consumption crisis and the economic situation created a new American culture.
Jaqueline Kennedy Onassis died
they were the "code talkers" for American troops in WWII
American colonies' break from British rule