He resolved to bring all the Greek city-states under his control as he realised the his defeat by Athens would encourage other Greek city-states to also interfere within his empire, which contained hundreds of Greek city-states.
Darius the 1st .
King Darius I.
Persia had a king, not an emperor. The Persian king Darius I was at home in Persia when the battle of Marathon took place, so he was not killed at Marathon. Darius the Great died of natural causes 14 years after Marathon.
King Darius I .
The battle of Marathon was a result of the Persians under King Darius the First to punish the Greeks for supporting the Ionian Revolt where Sardis had been burned after capture . The battle was essentially where the Greeks defeated a Persian punitive expedition that failed .
In 490 BC Greeks victoriously fought Persians in the Battle of Marathon in an attempt from King Darius I to subjugate Greece.
An Persian expeditionary force sent by King Darius to punish the Eretrians and Athenians for interfering in his empire was defeated at the Battle of Marathon in 490 BCE.
In 490 BC the Persion King Darius invaded Greece. He had planned to invade Greece and take over Athens, however; he lost at the battle of Marathon.
Darius was the third king of the Persian Empire and the father of Xerxes I (the king of Persia mentioned in 300). He was the first Persian to attempt to invade Greece and was ultimately defeated at the Battle of Marathon in 490 BC.
It was an expeditionary force sent by King Darius.
Persian King Darius I
Athens and its ally Plataia defeated the Persian expeditionary force sent out by King Darius at Marathon in 490 BCE.