Do you mean when they were conquered by the Romans at the battle of Corinth in 146 BC? Or are you counting their defeat by Philip of Macedon at the Battle of Chaeronea in 338 BC?
Since the Macedonians spoke the same language, they could be called Greeks. That would mean Alexander's successor kingdoms were Greek and were defeated by Rome one by one. The last one to hold out was Egypt. Cleopatra was defeated by Augustus at the Battle of Actium in 31 BC.
The Persian leader defeated by the Greeks was Darius.
Greeks were defeated (and won) over three thousand years. When exactly did you have in mind?
The romans
.....but they had some great philosophers.
Which battle.
It was not the Greeks but the Greek city-state of Eretria.The Persians then switched to Athens which defeated them at Marathon.
It is not known who the Minoans were defeated by or if they were defeated at all. No one really knows how the Minoan civilization ended. Some scientists do believe that the Greeks had defeated the Minoans though.-x-1. The Minoans were the greeks.(?)2. The Mycenaeans defeated them.
Chaeronea.
Chaeronea
Plataea.
polyponesian
Which battle - there were many, but the Greeks won by superior strategies and tactics.