regions. In the late sixth century BC, Macedonia became open to south Greek influences, although a small but detectable amount of interaction with the south had been present since late Mycenaean times. By the 5th century BC, Macedonia was a part of the "Greek cultural milieu" according to Edward M. Anson, possessing many cultural traits typical of the southern Greek city-states. Classical Greek objects and customs were appropriated selectively and used in peculiarly Macedonian ways. In addition, influences from Achaemenid Persia in culture and economy are evident from the 5th century BC onward, such as the inclusion of Persian grave goods at Macedonian burial sites as well as the adoption of royal customs such as a Persian-style throne during the reign of Philip II. Economy, society, and social class The way of life of the inhabitants of Upper Macedonia differed little from that of their neighbours in Epirus and Illyria, engaging in seasonal transhumance supplemented by agriculture. Young Macedonian men were typically expected to engage in hunting and martial combat as a byproduct of their transhumance lifestyles of herding livestock such as goats and sheep, while horse breeding and raising cattle were other common pursuits. In these mountainous regions, upland sites were important focal points for local communities. In these difficult terrains, competition for resources often precipitated intertribal conflict and raiding forays into the comparatively richer lowland settlements of coastal Macedonia and Thessaly. Despite the remoteness of the upper Macedonian highlands, excavations at Aiani since 1983 have discovered finds attesting to the presence of social organization since the 2nd millennium BC. The finds include the oldest pieces of black-and-white pottery, which is characteristic of the tribes of northwest Greece, discovered so far. Found with Μycenaean sherds, they can be dated with certainty to the 14th century BC. The finds also include some of the oldest samples of writing in Macedonia, among them inscriptions bearing Greek names like Θέμιδα (Themida). The inscriptions demonstrate that Hellenism in Upper Macedonia was at a high economic, artistic, and cultural level by the sixth century BCoverturning the notion that Upper Macedonia was culturally and socially isolated from the rest of ancient Greece. By contrast, the alluvial plains of Lower Macedonia and Pelagonia, which had a comparative abundance of natural resources such as timber and minerals, favored the development of a native aristocracy, with a wealth that at times surpassed the classical Greek poleis. Exploitation of