the Persian king. Art and archaeology show that Ionia was characterised by "openness and adaptability" towards the Lydians, Persians, and their eastern neighbours in this period. Lydian products and luxury objects were widespread. The Persians used "Yaunā" (Ionian) as a catch-all term for all Greeks, dividing them into "Yaunā of the mainland" in Asia Minor, "Yaunā dwelling by the sea" in the Aegean islands, "Yaunā dwelling across the sea" in the Greek mainland, and "Yaunā with shields on their heads" in Macedonia. Ionian revolt It was at the instigation of one of the tyrants, Histiaeus of Miletus, that in about 500 BC the principal cities ignited the Ionian Revolt against Persia. They were at first assisted by the Athenians and Eretria, with whose aid they penetrated into the interior and burnt Sardis, an event which ultimately led to the Persian invasion of Greece. But the fleet of the Ionians was defeated off the island of Lade, and the destruction of Miletus after a protracted siege was followed by the reconquest of all the Asiatic Greeks, insular as well as continental. Athenian empire The victories of the Greeks during the Persian invasion of Greece and the liberation of Thrace, Macedon, and Ionia from the Persian Empire had the effect of enfranchising their kinsmen on the other side of the Aegean, and the Battle of Mycale (479 BC), in which the defeat of the Persians was in great measure owing to the Ionians, secured their emancipation. They henceforth became the dependent allies of Athens within the Delian League. In the Athenian tribute lists, one of the regions of the empire is the Ionikos phoros, a region that includes the cities of Ionia, but also Aeolis and Mysia to the north. Caria to the south was initially its own region, but was folded into the Ionikos phoros in 438 BC. The Athenians advanced an expansive definition of Ionian identity, which included most of the communities under their control and emphasised common descent from Athens. This was probably intended to legitimise their rule over the region. It clashed with the restrictive definition of Ionian identity that was maintained by the Ionian League. Herodotus, who came from Halicarnassus, a Dorian city in southwestern Asia Minor which was also part of the Athenian Empire, writes in opposition to the Ionian League's claims that "it would be stupid to say that they are more truly Ionian or