Some Virginia slaveholders were nervous about the sharp increase in the number of free blacks in the slave state. They were uneasy as well by the violent aftermath of the French Revolution and the uprising of slaves in the 1790s in Saint Domingue. In 1792 France granted social equality to free people of color, and in 1793 French Revolutionary commissioners in Saint-Domingue granted freedom to all the slaves. Whites and free people of color, some of whom were also slaveholders, emigrated as refugees to the US during the years of upheaval, now known as the Haitian Revolution. They added to the population of free people of color in Charleston, Richmond and New Orleans. In addition, slaveholders brought thousands of ethnic African slaves with them, especially adding to the African population of New Orleans. In 1804 the black and mulatto revolutionaries succeeded in gaining freedom, declaring the colony the independent black nation of Haiti.