Pausanias Description of Greece 1.26.6

[6]
  Both the city and the whole of the land are alike sacred to Athena; for even those who in their parishes have an established worship of other gods nevertheless hold Athena in honor. But the most holy symbol, that was so considered by all many years before the unification of the parishes, is the image of Athena which is on what is now called the Acropolis, but in early days the Polis (City). A legend concerning it says that it fell from heaven; whether this is true or not I shall not discuss. A golden lamp for the goddess was made by Callimachus ¹

[6] Both the city [ polis] [of Athens] and the whole of the land [ gē] are alike sacred [ hierā] to Athena; for even those who in their demes [ dēmoi] have traditions of worshipping [ sebein] other gods nevertheless hold Athena in honor [ tīmē]. But the thing that was customarily-thought [ nomizesthai] to be the most holy [ hagion] thing by all in common [ en koinōi] already for many years before the demes [ dēmoi] came-together [ sun-eltheîn] is the statue [ agalma] of Athena [ Polias] that is on what is now called the Acropolis, but was in early days [called] the Polis. A tale [ phēmē] concerning it says that it [= the wooden statue of Athena Polias] fell from the sky [ ouranos]; but I will not follow up and say whether it was this way or some other way.