The American Revolution
Before
1773 - Boston Tea Party protests tax on tea imports
1775 - Armed clashes take place between patriot militia and British forces
After
1777 - British defeat at Saratoga persuades France to support the American rebels
1781 - The British surrender at Yorktown Virginia
1783 - Britain recognises American Independence
1787 - Drafting of the American Constitution begins
1789 - George Washington is elected as the first president of the United States
1790 - The US Constitution is ratified.