U.S. state, the region is traditionally said to have been named by Italian explorer Giovanni da Verrazzano when he passed through in 1524, based on an imagined similarity between modern Block Island and the Greek Isle of Rhodes. More likely it is from Roodt Eylandt, the name Dutch explorer Adriaen Block gave to Block Island c. 1614, literally "red island," so called for the color of its cliffs. Under this theory, the name was altered by 17c. English settlers by folk-etymology influence of the Greek island name (see Rhodes) and then extended to the mainland part of the colony. By 1685 the island had been renamed for Block. The Rhode Island red domestic fowl was so called by 1896, for its plumage.