Commencement of the differences with Athens, under the reign of Perdiccas II, 454—413; Athens having supported his brother Philip against him.—Defection of Potidæa, and fortification of Olynthus, into which the Greeks from Chalcis and other cities are transplanted, 432. Potidæa being forced to surrender to Athens, 431, Perdiccas contrives to play so skilful a part in the Peloponnesian war just now commencing, that he outwits the Athenians, parrying the attack of Sitalces by a marriage of his sister with Seuthes, the heir to that prince, 429. His alliance with Sparta, 424, is very detrimental to the Athenians, Brasidas wresting Amphipolis from their hands; nevertheless Perdiccas chooses rather to conclude a peace with Athens, 423, than to throw himself entirely into the arms of his new allies.

Archelaus lays the foundation of Macedonia, 413—400.

4. Archelaus, the successor of Perdiccas, introduced agriculture and civilization among the Macedonians, who were never, however, recognized by the Hellenes as their legitimate brethren: highways and military roads were constructed; forts were erected; and the court became the seat of literature. In these days the Macedonian kingdom seems to have comprised Emathia, Mygdonia, and Pelagonia, to which may be added some of the neighbouring tribes, who, although governed by their own kings, were tributary. The power of the kings was insignificant when unaided by the nobles, among whom, as was the case with all the hereditary princes of Greece, they merely held the right of precedence. How difficult was it, even in Alexander's time, to erase from the minds of the Macedonian nobility the recollection of their former importance!

5. The murder of Archelaus was followed by a stormy period, wrapped in obscurity: the unsettled state of the succession raised up many pretenders to the throne, each of whom easily found the means of supporting his claims, either in some of the neighbouring tribes, or in one of the Grecian republics.

Æropus, as guardian to the young king Orestes, usurps the supreme power, B. C. 400—394. After his death, and the murder of his son Pausanias, 393, the throne was seized by Amyntas II. son of Philip, and brother to Perdiccas II. who was nevertheless unable to maintain his power until he had gained a victory over Argæus, the brother of Pausanias, who was backed by the Illyrians, 390—369. The war with Olynthus, 383—380, could not be brought to a successful conclusion until he had formed an alliance with Sparta.

6. The three sons of Amyntas II, Alexander, Perdiccas, and Philip, successively ascended the throne after the death of their father; but so violent were the commotions during the reigns of the two former, that the future existence of Macedonia as a kingdom might have been regarded as problematical: it is certain that they were obliged to submit to the payment of tribute to the Illyrians.

Alexander, in opposition to his rival, Ptolemy of Alorus, placed on the throne by Pelopidas, sends his youngest brother Philip as hostage to Thebes: in the same year he is deposed by Ptolemy, 368. Reign of Ptolemy, 388—365, with the stipulation imposed, 367, by Pelopidas, that he shall only hold the sceptre in reserve for the two younger brothers. Murder of Ptolemy, 365, by Perdiccas III. who is nearly overwhelmed by Pausanias, another and earlier pretender to the crown; he is at last firmly seated on the throne by the Athenians, under Iphicrates, 364. But as early as 360 he falls in the war against the Illyrians, leaving behind him a son, Amyntas, still a minor, and a younger brother Philip, who escapes from Thebes in order to gain possession of the throne.

Philip, 360—336.

7. The reign of Philip, which lasted twenty-four years, is one of the most instructive and interesting in the whole range of history, as well on account of the prudence he displayed, as for the manner in which his plans were arranged and executed. Though it may be difficult to trace in his morals the pupil of Epaminondas, yet it is impossible to view without feelings of astonishment the brilliant career of a man, who, under the almost hopeless circumstances in which he commenced his course, never lost his firmness of mind, and who in the highest prosperity preserved his coolness of reflection.