History of the Greek alphabet Plutarch criticizes Herodotus for prejudice and misrepresentation. Furthermore, he argues that "Gephyraei" were Euboeans or Eretrians and he doubts the reliability of Herodotus' sources. Plutarch and other ancient Greek writers credited the legendary Palamedes of Nauplion on Euboea with the invention of the supplementary letters not found in the original Phoenician alphabet. The distinction between "Eta" and "Epsilon" and between "Omega" and "Omicron", adopted in the Ionian standard, was traditionally attributed to Simonides of Ceos (556-469). Plutarch goes further back to describe an older Greek writing system, similar as he attested to the Egyptian writing. In his “Discourse Concerning Socrates’s
Greek alphabet are: , , , , , , , , , , , , , , , , , /ς, , , , , , and . The Greek alphabet is the ancestor of the Latin and Cyrillic scripts. Like Latin and Cyrillic, Greek originally had only a single form of each letter; it developed the letter case distinction between uppercase and lowercase forms in parallel with Latin during the modern era. Sound values and conventional transcriptions for some of the letters differ between Ancient and Modern Greek usage, because the pronunciation of Greek has changed significantly between the fifth century