some Greeks rebelled against he and helped there fellow Greeks in the fight for Asia
Darius wanted revenge.
The Persian leader defeated by the Greeks was Darius.
it means that you will swear on your revenge that you will get an even bigger revenge
against the Greeks because he was the king of Persia
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Darius I.
when he defeat the king darius 3
Many Greeks stated that Greece was more advanced than Persia.
The plain of Marathon , Greece .
Darius the Great's commander Datis came to grief at the Battle of Marathon in 490 BC (First Persian invasion of Greece) .
The past perfect is formed with - had + past participle.The past participle of swear is sworn. So past perfect of swear is:had swornI had sworn to revenge the death of my cat.