If Language Evolved Tens of Thousands of Years Ago Then They Made No Symbols Indicating Evolution to Bronze Age?

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How long ago do the darwinists say that such as the ancient Assyrian (“Akkadian”) language “evolved,” and the other Semitic languages such as ancient Hebrew (which was adopted by the Canaanites), and the Hamitic Coptic language of ancient Egypt, and the Indo-European (Japhetic) Ionian language of Greece, how long ago did they evolve would the darwinists say, and from what previous languages (or from none at all really?) did they supposedly evolve; why would they have left no written symbols?