July 2, 1777- Vermont became the first American colony to abolish slavery. By 1783 slavery was prohibited in Massachusetts and New Hampshire. Pennsylvania passed a gradual emancipation law in 1780. Connecticut and Rhode Island barred slavery in 1784 and were followed by New York (gradual emancipation) and New Jersey in 1799 and 1804, respectively. Slavery died in the North as a direct result of forces set in motion by the Rights of Man movement.