Athens–Piraeus Electric Railways 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 in the world. The current line evolved from the older "Athens & Piraeus Railway" and "Lavrion Square-Strofyli railway". In June 2011 ISAP was absorbed by a new transport company, STASY S.A. The line from Piraeus to Thision was inaugurated on February 27,
Piraeus plan was also drawn up and approved by King Otto, but not completely fulfilled, as it was revolutionary for its time. The municipality was established in 1835, reviving the ancient name 'Piraeus'. Following petitions from the new and emerging prosperous bourgeoisie, municipal elections were held to elect a mayor for the city, Kyriakos Serfiotis of Hydra. Piraeus had around 300 inhabitants at this time. Piraeus, from a deserted small town, quickly became the leading port and the second largest city in Greece, with its prime geographical location and closeness to the Greek capital helping it continually to grow, attracting people