Persian Marathon

In the regular Battle of Marathon the battle results in Greek victory and the Persian forces are drawn from Greece, but what would happen if the Persians won the war instead of the Greek?

Point of Divergence
In 490 BC this war happened in the city of Marathon, Greece. The Persians were in higher number than the Greeks, but they were defeated by the larger Greek army. But in this timeline the Persians already studied the city well and had an even bigger army, and they resulted victorious in the war.

Contributers
Awesome History 28: Creator and main contributor

Aaron 2: Contributor to the timeline