Miletos,Athens and Alexandria were the three cultural centers in the ancient Greek history.As an early center of Greek civilization,the status of Miletos is determined by its original cultural achievements and its enormous influence on the development of the whole history of Greek culture.When the civilization in the Greek mainland was still slowly recovering,in the Ionian region centred around Miletos,a knowledge revolution took place,in which philosophy,historiography,literature and other disciplines began to get out of the early state and form their own model that laid the foundation for ancient Greek culture,especially Greek philosophy,historiography and literature.This knowledge revolution enabled the Ionian states surpass Athens,Sparta and other polis in power and prosperity and became the most advanced region in the Archaic Greece.