Which people were so primitive that they didnt know how to write?

Where Hippocrates was born? What would Athens be called if Poseidon was the patron of Athens? Which country used to be called Abyssinia? What is the origin of the word 'redemption'? What were some of ancient Egyptian inventions? God who carries the fishermans trident? What methods did the Aztecs use to unify their empire? What is the Greek story behind hades? Where does the name Irene come from? What events led to conflict between the polis of Athens and the Persian Empire under King Darius the Great? Who were hades allies and rivals? Who was the most important god for the Aztecs? What book or primary reference reports the Achilles death? What was the Greek god Dionysus's personality? What did Cleopatra uraeus look like? Why did people pray to Jupiter? Who kept Odysseus captive for seven years? How did Europeans become aware of greek thinking? Who was Penelope's most forceful suitor? What did the Aztecs do with the heart?