'Strictly speaking, there was no such thing as "the Pacific" until in 1520-1 Fernao de Magalh is, better known as Magellan, traversed the huge expanse of waters, which then received its name.' With these opening words, Oskar Spate launches his account of the process by which the greatest blank on the map became a focus of global relations. The Spanish Lake describes the essentially European and American achievement of turning this emptiness into a...