In response to British tax policy, the colonies' representatives decide to take action and protest their mother country's Parliament. Congress agrees to reconvene later if things keep getting worse.
Which they do.
After a few battles (Bunker Hill, Concord) George "Wooden Chompers " Washington is appointed by Congress to lead the American forces, known as the Continental Army.
Game time. America formally breaks away from Britain.
The next task: come up with a new government to replace the old one.
The first draft is said to have used way too many "lols" and "btws."
Just like travelling through hyperspace, creating a new government from scratch ain't like dusting crops.
The delegates debate the document for a year while the war goes on. Hey, no rush.
After a few months of delay due to printing errors (no, really), delegates from eight states sign and ratify the document.
The ball is officially rolling.
The historically British-hating French ally with the new American nation, a major military turning point in the war. Wait, say American soldiers, we might win this thing…
Looking at you, Maryland.
The British acknowledge the new government and nation of the United States. King George III cries deeply while American ambassador Benjamin Franklin celebrates with the women of Paris. (Source)
Led by John Dickinson, author of the Articles of Confederation, delegates from the states acknowledge "defects in the system of the Federal Government." (Source)
Economic turmoil in the United States leads to a series of violent uprisings against the government in Massachusetts and other states, led by Revolutionary War veteran Daniel Shays. The Rebellion is viewed as evidence that the Articles of Confederation need to be changed.
State delegates organize a convention to take place in Philadelphia later that year. The purpose: fix the shoddy government.
Instead of revising the Articles of Confederation, the delegates, led by Federalists James Madison and Alexander Hamilton at the convention, come up with the Constitution.
Hamilton, Madison, John Jay, and friends, writing under the pseudonym "Publius," publish pamphlets arguing for the ratification of the new Constitution. (Say "Publius" three times fast. Try not to laugh.)
New Hampshire is the ninth state to ratify the new Constitution, which officially replaces the Articles of Confederation. The final four states out of the thirteen eventually follow.