Piraeus form the greater Piraeus area, with a total population of 448,997. Piraeus has a long recorded history, dating to ancient Greece. The city was largely developed in the early 5th century BC, when it was selected to serve as the port city of classical Athens and was transformed into a prototype harbour, concentrating all the import and transit trade of Athens. During the Golden Age of Athens the Long Walls were constructed to fortify Athens and its port (Piraeus). Consequently, it became the chief harbour of ancient Greece, but declined gradually after the 4th century AD, growing once more in
Piraeus currently uses as home ground the Municipal Stadium Nikaia. Ionikos of Nikaia had a longstanding presence in Super League Greece and its home ground is the Municipal Stadium Neapoli. In basketball, Olympiacos B.C. is the only major club from Piraeus, one of the most successful at domestic and European level, and its home arena is the Peace and Friendship Stadium, while the volleyball department of the same club, Olympiacos S.C., is the dominant domestically and has made great success in European competitions as well. Piraeus rides really high in water polo, where Ethnikos Piraeus and Olympiacos departments have entirely dominated