Question: what are the 3 most important events in us history?
Answer: Jul 4, 1776. Declaration of Independence. The Declaration of Independence happened in New England. ... 
Jan 1, 1861. Civil War. The Civil War went on in mostly the South of the United States. ... 
Jan 1, 1939. World War 2. World War 2 happened in Europe. ... 
Aug 28, 1963. Martin Luther King Jr. " I Have a Dream" Speech. ... 
Sep 11, 2001. 9/11.