The Great Chagos Bank was surveyed for the first time by Commander Robert Moresby of the Indian Navy in 1837; all other maps that would be drawn for over a century and a half were based on his chart.
O gran banco de Chagos foi por primeira vez estudado polo Comandante Robert Moresby da Indian Navy en 1837, todos os outros mapas que se editaron durane máis dun século e medio baseábanse no seu.