Antonio Nebrija, best known for attempting to standardize the Castilan dialect of Spanish as a written language, had many geographical interests. Advisor to Columbus's son Ferdinand Colón, Antonio Nebrija attempted to update the geography of Ptolemy, Strabo, Pliny, and other classical sources “to the reality of our times” and to include information from the discoveries of contemporary European explorers. This book contains one of the earliest descriptions of the New World.