Athens–Piraeus Electric Railways was under consideration that would have been built in two phases, reaching Nea Erithrea by the end of the first phase and Agios Stefanos by the end of the second phase. Due to lack of funding, this extension was canceled in 2011. Athens–Piraeus Electric Railways I.S.A.P. or Athens–Piraeus Electric Railways (, "Ilektrikoi Sidirodromoi Athinon-Pireos") was the oldest urban rapid transit system of Athens metropolitan area in Greece. Opened as a suburban railway line connecting Athens with the nearby major port city of Piraeus, it was gradually converted to full rapid transit operations, making it one of the oldest metro lines
Piraeus derby the 1985–86 season and has not finished above Olympiakos in the league standings since the 1987–88 season. In the 1990s, when Olympiacos was experiencing probably the greatest era of its history while Ethnikos was suffering through what was surely its worst, Ethnikos lost some of its fanbase to Olympiakos. A recent point of contention for Ethnikos fans has to do with Karaiskakis Stadium. Karaiskakis is the traditional home of both Olympiakos and Ethnikos, but only Olympiacos has played there since the stadium was rebuilt for use in the 2004 Summer Olympics. Piraeus derby The Piraeus derby, is an association football