He probably did much of what Theseus is supposed to have done in synœcising Athens--that is, transforming Attica from a number of villages with a capital into a city-state with surrounding territory. We know that he sent judges on circuit round the country demes. The other indications are that Peisistratus pulled down the city wall in order that she might be able to expand, that he constructed a proper water-supply, and that he fostered the worship of the Olympian or city deities. At the same time he fostered agriculture, and tried to get the poor of Athens back to the land. As he had owed his return to Athena, he signalised his gratitude by surrounding the old temple of Athena Polias with a marble peristyle and sculptures. Some of the sculptures of this period are preserved on the Acropolis of Athens. They were generally carved of the softer _porus_ or rough limestone, and freely adorned with colour. But the decorations of Peisistratus’ temple are of Parian marble. Heracles and his labours seem to have been preferred to Theseus as a subject for representation. On the plain below the Acropolis Peisistratus began a temple to Olympian Zeus on so huge a scale that republican Athens was unable to complete it until the Emperor Hadrian brought his immense resources into play. But Peisistratus did more than building for religion. He may fairly be called the founder of the State cults of Athens. He founded the Greater Panathenæa, as the symbol of union for Attica. This was a most solemn yearly procession of all the people, to carry up a new embroidered robe as a gift to the Virgin Goddess on the Acropolis. That is the scene depicted on the frieze of the Parthenon which is now the chief glory of the British Museum. Later Athenians, of course, ascribed the Panathenæa to Theseus or Erechtheus. Along with the procession there were athletic games and sacrifices. And the prizes in the games were those fine big oil-jars, the Panathenaic amphoræ, of which we have a long series preserved.[34] This gave a great impulse to pottery. It is about now that we begin the black-figured type of vase, in which the figures are painted with a lustrous black glaze on the rich brown of the earthenware.