The Histories of Herodotus is considered the founding work of history in Western literature. Written around 430 BC in the Ionic dialect of classical Greek, The Histories serves as a record of the ancient traditions, politics, geography, and clashes of various cultures that were known in Greece, Western Asia, and Northern Africa at that time.[citation needed] Although not a fully impartial record, it remains one of the West''s most important sources regarding these affairs. Moreover, it established the genre and study of history in the Western world (despite the existence of historical records and chronicles beforehand).The Histories also stands as one of the earliest accounts of the rise of the Persian Empire, as well as the events and causes of the Greco-Persian Wars between the Persian Empire and the Greek city-states in the 5th century BC. Herodotus portrays the conflict as one between the forces of slavery (the Persians) on the one hand, and freedom (the Athenians and the confederacy of Greek city-states which united against the invaders) on the other. The Histories was at some point divided into the nine books that appear in modern editions, conventionally named after the nine Muses.