</ref> and claimed the archipelago for Spain in 1521, but stayed for only a few days. Christianity was established in the Philippines only after the arrival of the succeeding Spanish expeditionary forces (the first led by Legazpi in the 16th century) and the Spanish Jesuits, and in the 17th and 18th centuries by the conquistadores. | </ref> and claimed the archipelago for Spain in 1521, but stayed for only a few days. Christianity was established in the Philippines only after the arrival of the succeeding Spanish expeditionary forces (the first led by Legazpi in the 16th century) and the Spanish Jesuits, and in the 17th and 18th centuries by the conquistadores. |