Slavery The issue of slavery has been touched upon often in the course of history. The institution of slavery was addressed by French intellectuals during the Enlightenment. Later, during the French Revolution, the National Assembly issued the Declaration of the Rights of Man, which declared the equality of all men. Issues were raised concerning the application of this statement to the French colonies in the West Indies, which used slaves to work the land. As they had different interests in mind, the philosophes, slave owners, and political leaders took opposing views on the interpretation of universal equality. Many of the philosophes, the leaders of the Enlightenment, were agains