Original sentence: After the invasion of Mesoamerica, the Spaniards sent various expeditions to explore La Gran Chichimeca.The Spanish eventually regained their advantage aided by infectious disease and suppressed the revolt by December 1541
Edited sentence: After the conquest of Mesoamerica, the Spaniards sent various expeditions to explore La Gran Chichimeca.The Spanish eventually regained their advantage and suppressed the revolt by December 1541