The Parthenon, dedicated by the Athenians to Athena Parthenos, the patron of their city, is the most magnificent creation of Athenian democracy at the height of its power. It is also the finest monument on the Acropolis in terms of both conception and execution. Built between 447 and 438 BC, as part of the greater Periklean building project, this so-called Periklean Parthenon (Parthenon III) replaced an earlier marble temple (Parthenon II), begun after the victory at the battle of Marathon at approximately 490 BC and destroyed by the Persians in 480 BC. This temple had replaced the very first Parthenon (Parthenon I) of c. 570 BC. The Periklean Parthenon was designed by architects Iktinos and Kallikrates, while the sculptor Pheidias supervised the entire building program and conceived the temple’s sculptural decoration and chryselephantine statue of Athena.