Ratified on May 29, 1790, the Constitution included the Bill of Rights, three branches (executive, legislative, and judicial), and a bicameral legislature compromised on as a result of the Virginia and New Jersey Plans. America Rocks!!! http://en.wikipedia.org/wiki/United_States_Constitution
The "final straw" that showed how weak the government under the Articles of Confederation were, that a stronger, centralized national government was needed, and that a change in the government needed to happen asap. http://en.wikipedia.org/wiki/Shays%27_Rebellion
"No taxation without representation!"
Taere were tax issues along with others problems that lead to rebellion: Stamp and Sugar Act, Boston Tea Party, then all out WAR with Britain!
American Revolutionary War (1775–1783) http://en.wikipedia.org/wiki/American_Revolutionary_War