Between 1774 and 1787, greater condemnation of the slave trade occurred from mainly Christian individuals and groups, notably Quakers, than was the case before the American War of Independence. The humanitarian arguments made, however, did not translate into coordinated campaigning against continuance of the slave trade. Both Continental Congresses banned slave importations as part of a wider package of non-importation measures on British goods, but neither had any authority to impose enforcement measures. Jefferson’s attempt to insert a clause into the Declaration of Independence to prohibit slave importations backfired as he penned words stretching far beyond the required remit of such a clause and was forced to withdraw his statement. The Confederation Congress under the Articles of Confederation lacked the political authority to deal with slave imports. Yet positive activity occurred at state level. Delaware and Vermont banned the slave trade in their state constitutions of 1776 and 1777 respectively. The Bill of Rights included in the Massachusetts Constitution of 1780 proscribed slave imports. The New Hampshire state constitution of 1783 also banned slave imports. In 1778 Virginia passed a statute to end slave importations to the state. The Pennsylvania gradual abolition of slavery law in 1780 incorporated a bill in the same state from the previous year that banned slave imports. Abolitionist views spread widely as a result of efforts by Anthony Benezet and other Quakers, but there was no national campaign against the slave trade. South Carolina was the state where the most acrimonious arguments occurred over the slave trade. The state legislature reopened Charleston to slave importations in 1783 and over the next four years thousands of Africans were imported. Divisions underscored the reality that proscribing the entire slave trade to the United States could only happen under the aegis of national political authority and that was absent in 1787.