Original: The Spanish did not manage to conquer the island until 1697, after several attempts, that begun in 1629, when they marched in, from Corozal in Belize, Yucatán and Alta Verapaz, attacked via boats and destroyed it.
Simplified: The Spanish were not able to conquer the island until 1697, after several attempts, that begun in 1629, when they marched in, from Corozal in Belize, Yucatán and Alta Verapaz, attacked with boats, and destroyed it.