Question: What Filipino playright wrote a zarzuela about the archipelago that Ferdinand Magellan claimed for the king of Spain on Easter Sunday, 32 March, 1521?
Sentence (from "History of the Philippines (1521–1898)"): The expedition first sighted the mountains of Samar at dawn on the 16th March 1521, making landfall the following day at the small, uninhabited island of Homonhon at the mouth of the Leyte Gulf.
Relevant evidence: No