In July 1775 how did the continental congress begin to act like an independent government?

The Continental Congress was the governing body by which the American colonial governments coordinated their resistance to British rule during the first two years of the American Revolution. The Congress balanced the interests of the different colonies and also established itself as the official colonial liaison to Great Britain. As the war progressed, the Congress became the effective national government of the country, and, as such, conducted diplomacy on behalf of the new United States.