When the Persians left Greece, Pericles was still a youth, so the rebuilding task fell to others.
He purloined the war funds paid by the Delian League city-states and spent part of them on the beautification.
Athens.
Pericles was but a boy after the repelling of the Persian invasion in 479 BCE. His building programme in Athens after peace was made with Persia was financed by the anti-Persian league treasury which he shifted from the temple at Delos to Athens and pillaged for the benefit of Athens.
Pericles was a leader of Athens who was responsible for rebuilding Athens following the Persian Wars. He was also leader of Athens during the Peloponnesian War, but he died of the plague that ravaged the city.
Pericles was the most notable leader of Athens after the Persian Wars. He was a tremendous patron of the Arts and led Athens into a golden age. He is also widely accused of leading Athens and the Delian League into the Peloponnedian War, which they lost some 20 years after Pericles' death in 429 BC.
They turned the alliance of cities against the Persian Empire into an empire of their own and used the financial contributions of the cities to beautify Athens and keep half its population on the public payroll.
Under the leadership of Sparta they declared war on Athens
When the most intense part of the War was on he was a boy. He later became one of the leaders in Athens.
Contrast the results of the Persian and Peloponnesian war with regards to Athens Greece
The Persian War lasted from 499 BCE to 449 BCE. In the earlier stages of the Persian invasion he was a boy and so did not fight. The ongoing war with Persia was largely carried by the general Cimon. Pericles became an important leader later about the time peace was made with Persia. His fighting was mainly in internal Greek wars, including pushing Athens into a disastrous 27-year war with the Peloponnesian League led by Sparta. He died of plague two years into that war.
Persian War I, Persian War II, The Peloponnesean War, The Macedonian War, …
Yes he used the extra war fund to build Parthenon
His establish of Athenian dominance of 180 Greek city-states after the Persian War, converting the Delian League into an empire of Athens, thereby giving it the money and military strength to spend on a superior navy and on Athens' welfare state.