Complex sentence: Individual colonies began collaborating at the Albany Congress of 1754 to demand more rights and set up a Continental Congress in 1774 that declared independence from Great Britain in 1776 and formed a new nation, the United States of America.
Split into simpler sentences: Individual colonies began collaborating at the Albany Congress of 1754 to demand more rights. They set up a Continental Congress in 1774 which declared independence from Great Britain in 1776 and formed a new nation, the United States of America.