Ionic acquired prestige among Greek speakers because of its association with the language used by both Homer and Herodotus and the close linguistic relationship with the Attic dialect as spoken in Athens. This was further enhanced by the writing reform implemented in Athens in 403 BC, whereby the old Attic alphabet was replaced by the Ionic alphabet, as used by the city of Miletus. This alphabet eventually became the standard Greek alphabet, its use becoming uniform during the Koine era. It was also the alphabet used in the Christian Gospels and the book of Acts.