チャモロ人
The earliest known contact with Europeans occurred in 1521, when a Spanish expedition under Ferdinand Magellan reached the Marianas This contact is recorded in Antonio Pigafetta's chronicle of Magellan's voyage, in which he recounts that the Chamorro people had no apparent knowledge of people outside of their island group. A Portuguese account of the same voyage suggests that the Chamorro people who greeted the travellers did so "without any shyness as if they were good acquaintances".