The First Continental Congress was composed on September 5, 1774 by delegates from the colonies. 56 delegates attended this meeting in Philadelphia to decide on how they should react to the intolerable acts. They became America's first form of government.
On April 19, 1775 the battle of Lexington and Concord started the Revolutionary War. British soldiers marched into Lesingtongton looking for the colonist supply of weapons. The colonist were ready though and sounded the alarm for reinforcements. The colonist had already hidden their firearms elsewhere so all Britain got was a fight.
The Second Continental Congress was also in Philadelphia and was composed on May 5, 1775. Many of the previous delegates attended this meeting as well. Congress's job was to manage the colonial war effort and work towards independence from England.
On June 17, 1775 during the beginning of the revolutionary war the British won a battle on Breed's Hill against the Patriots. Even though the Patriots lost they gave a good fight making the British retreated twice before they were able to take over Breed's Hill, and only because they ended up running out of ammunition. The battle at Bunker Hill was the first major battle of the Revolutionary War.
In 1774 the French constructed Fort Duquesne at the heart of the Ohio River. George Washington was sent to take over Fort Duquesne a.k.a. Fort Necessity but failed to and ended up retreating for a year. The British had also made many attempts to win over this area and finally in 1758 General John Forbes was able to.
On August 27, 1776 20,000 British soldiers entered New York to take it out of colonial control. With only 10,000 soldiers the Patriots were easily beat and suffered many casualties. This was another one of the major battles in the American Revolution.