Crash Course World History: The Persians and the Greeks

Crash Course World History: The Persians and the Greeks gives an overview of the causes of conflict between the Achaemenid Persian Empire and the Greek city states in the 5th century BCE, the results of Greek victory the resulting squabble between the Greek states that was the Peloponnesian War. Presenter, John Green gives an interesting argument that it may have actually been better if the Persians had won the war.