He came across it on Easter Sunday in 1722 while looking for Davis Land, a supposed island that had been put on maps for some time but was later found not to exist. The island was believed to be in the Pacific Ocean, near South America.
Its name came from the pirate Edward Davis, who reportedly spotted it in 1687 while sailing across the Pacific south of the Galapagos Islands toward Cape Horn. Davis made raids on Spanish settlements along the coasts of Mexico, Peru, and Chile.