how were the greeks able to defeat the persians
2 answers
https://www.greekboston.com/culture/ancient-history/greco-persian-wars/
Somehow that link does not mention the Greek (Athenian) naval victory at Salamis
here:
https://www.britannica.com/event/Battle-of-Salamis
here:
https://www.britannica.com/event/Battle-of-Salamis