TIL Persia helped Athens fight Sparta in exchange for Athenians recognizing Persian rule. Athenians returned to Athens and the crisis had passed so they went back on the agreement. Darius attacked much later. (Source: Pre-Islamic Middle East by Martin Sicker)
They cut out relevant bits (Spartan wars with Athens were often instigated by Persia in a divide-and-conquer way), but overall really accurate video!
