What is the name of the military leader who "ushered in the golden age of greece"?

The Golden Age was of Athens. Under the leadership of Pericles, it turned the Delian league which it had led against the Persian Empire into an empire of its own, milking it of money to support its own building programme, sponsoring the arts and learning, and putting half its own citizens on the public payroll. The pillaged cities didn't find it so golden, so it wasn't Greece, it was Athens which got the gold and easy life.