"Philip, on campaign in Thrace, got the news along with two other messages. His general, Parmenion, had soundly defeated the Illyrians in the west; and his racehorse had won at the Olympic Games. The right of Olympic entry was a prized inheritance of the kings of Macedon. The Games were only open to Greeks; and Macedonians were not recognized in the south as the offshoots of the original stock, which in fact they were. They were regarded as semi-barbarous (the actual term 'barbarian' was reserved for Persians) and the royal house had just scraped in on the strength of a remote Argive ancestry. For Philip, to whom acceptance in the Greek world was a lifelong dream, this news may have been the most welcome item of the three..."
January 1, 1970
https://en.wikiquote.org/wiki/Macedonia_(ancient_kingdom)