True, the conquistadors did not want the Indians to die off en masse. But that desire did not stem from humanitarian motives. Instead, the Spanish wanted native peoples to use as a source of forced labor. In fact, the Indian deaths were such a severe financial blow to the colonies that they led, according to Borah, to an “economic depression” that lasted “more than a century.” To resupply themselves with labor, the Spaniards began importing slaves from Africa.