N. G. L. Hammond in the context of "Special Operations Executive"

Perdiccas I (Greek: Περδίκκας, romanized: Perdíkkas; fl. c. 650 BC) was king of the ancient Greek kingdom of Macedon. By allowing thirty years for the span of an average generation from the beginning of Archelaus' reign in 413 BC, British historian Nicholas Hammond estimated that Perdiccas ruled around 653 BC.

There are two separate historical traditions describing the foundation of the Argead dynasty. The earlier, documented by Herodotus and Thucydides in the fifth century BC, records Perdiccas as the first king of Macedonia. The later tradition first emerged sometime at the beginning of the fourth century BC and claimed that Caranus, rather than Perdiccas, was the founder. Aside from Satyrus, who adds Coenus and Tyrimmas to the list, Marsyas of Pella, Theopompos, and Justin all agree that Caranus was Perdiccas' father. Furthermore, Plutarch claimed in his biography of Alexander the Great that all of his sources agreed that Caranus was the founder. This unhistorical assertion is rejected by modern scholarship as Argead court propaganda, possibly intended to diminish the significance of the name 'Perdiccas' in rival family branches following Amyntas III accession.

Bryges or Briges (Greek: Βρύγοι or Βρίγες) is the historical name given to a people of the ancient Balkans. They are generally considered to have been related to the Phrygians, who during classical antiquity lived in western Anatolia. Both names, Bryges and Phryges, are assumed to be variants of the same root. Based on archaeological evidence, some scholars such as Nicholas Hammond and Eugene N. Borza argue that the Bryges/Phrygians were members of the Lusatian culture that migrated into the southern Balkans during the Late Bronze Age.