Battle of Marathon
9,000 Athenians and of their 1,000 Plataian allies.
The batte of Marathon was between the Athenian people or Athens and the greatest empire of that time Persia.
9,000 heavy infantry and 9,000 light infantry, plus 2,000 Platean allies.
The Mede general Datis and Persian general Artaphernes commanded the Persian forces.
Spartans did not fight at the Battle of Marathon. The fight was solely between the Persians, and the Athenians and Plataeans.
Athenians
They were defending their city from an attempt by Persia to instal an expelled Athenian tyrant to rule them.
The Battle of Marathon .
The Battle of Marathon was the first attempt , and first defeat , by Persian forces to subjugate Greece . The Persians were defeated by the Athenians at Marathon , Greece .
At the battle of Marathon 490 BCE the Athenians defeated the Persians.
Battle of Marathon
Marathon , Greece
King Darius I .
Persians and Athens fought each other at the Battle of Marathon in 490 BC - the Athenians prevailed .
It was Athens against Persia. Athens helped Miletus (another city-state) in a battle against Persia. Athenians didn't actually fight, they just helped Miletus by giving them ships and weapons. Miletus lost against Persia and when Persia discovered that Athens had helped Miletus they wanted the Athenians killed. Thus the battle of Marathon began.
The Greek historian Herodotus mentions 192 Athenians and 11 Plataeans .