Input (grade 13): They were first sighted on 12 February 1619 by the Garcia de Nodal expedition, and named after the cosmographer of the expedition, Diego RamÃ rez de Arellano.
Output (grade 9): The islands belong to Chile, and are named after Diego RamÃ rez. They were first sighted on 12 February 1619 by Marco Ramirez of the Garcia de Nodal expedition, and named after the cosmographer of the expedition.