This chapter explores the shock waves caused by the Haitian Revolution and the massive slave insurrection that took both the Americas and Europe by surprise. Despite the rarity of large-scale revolts after 1794, the Saint Domingue insurrection did have a lasting impact on the slaves. The greatest lesson they retained from Haiti was that the institution of slavery was neither unchangeable nor invincible. Amid the troubled backdrop of the age of revolutions, many attentively followed the legal changes upsetting their owners, like the Spanish Códigno Negro, the French abolition of slavery, gradual emancipation laws in the northern United States, and the ban of the slave trade by Great Britain and the United States. Furthermore, after 1794, protests during which slaves claimed freedom they believed to have been decreed by the king or the government, but hidden by their masters, multiplied.