Answer: Epicurus
Step-by-step explanation:
People in your question are all famous ancient Greek people and famous historians are Polybius, Herodotus and Thucydides.
Epicurus was not a historian, he was a philosopher who was the founder of an Epicureanism school of philosophy and he was also very famous back then and now.
The oldest famous historian from the above is Polybius. They were mostly writing history about wars and empires.