Easter Island - By Nathan Schucher and Evan Chou By 101 Jan 1, 600 Polynesians Settle In Mangareva Apr 17, 640 Continued Exploration of Islands Apr 17, 660 Polynesians arrive at Easter Island Polynesians arrive at Easter Island Apr 17, 1000 Growth and Prosperity Apr 17, 1872 Only 111 Easter Islanders left alive. Sep 9, 1888 Annexation of Easter Easter was annexed September 9, 1888 by Chili Apr 17, 2009 Today