Final answer:
The correct answer to fill in the blanks is: a. Ostracised; 472 BC; expelled; implicated.
Step-by-step explanation:
Themistocles was a significant figure in Athenian politics and military strategy during the early 5th century BCE. He played a crucial role in the Greek victory against the Persians at the Battle of Salamis. However, due to political maneuvers and the shifting allegiances within Athens, Themistocles was ostracised from Athens in 472 BC.
Although initially only removed from the city of Athens, he was not expelled from Greece entirely until a few years later. This harsher fate befell him when he was implicated by the Spartans in the alleged crimes of Pausanias, leading to his eventual exile from the Greek world.