The first continental congress was held in October 1774. Colonial leader met because they were concerned about the colonist's feud with britain.
On April 19, the colonists and British troops met in Lexington. A mysterious gun was fired. No one knows who shot that gun today but that it was most likely an accident. The battle was very short and only lasted a few minutes.
The second continental congress took place in May 1775. In Philedelphia, 12 delegates met to discuss having a republican government. They ended up creating the continental army.
Benedict Arnold led 400 colonists to New York to capture Fort Ticonderoga. Which he did In May, 1775. With all the weapons now captured, the colonists snuck at night into Breed's hill to attack. With lack of supplies though they had to back down.
March 4, 1776 is when George Washington surrounded general William Howe's home in Dorchester Heights. William was forced to surrender. The colonists realized they might have a shot at winning this war.
In June 1776, The British and the colonists had many fights. Finally the British captured the colonists and all of their supplies. New York City was captured by Wiliam Howe.