The fifth-century Greek writer Herodotus (ca. 484–425 B.C.) is considered the first person to use the label historian. His Histories is a description of the Persian Wars (ca. 490–479 B.C.). However, nearly half of the work is an ethnographic study of the myriad groups of peoples in the Mediterranean and Near Eastern worlds. The topic of Book IV is his study of the Libyans of North Africa, found in the fourth volume of Histories.