in the lexicon of Photius) offers a different explanation apparently given by Marsyas, son of Periander: that a large proportion of the population lived "around the city". However, a more probable explanation is the one given by Julius Pollux: that the name indicates the vicinity of an isthmus. Amphipolis quickly became the main power base of the Athenians in Thrace and, consequently, a target of choice for their Spartan adversaries. In 424 BC during the Peloponnesian War the Spartan general Brasidas captured Amphipolis. Two years later in 422 BC, a new Athenian force under the general Kleon failed once more during the Battle of Amphipolis at which both Kleon and Brasidas lost their lives. Brasidas survived long enough to hear of the defeat of the Athenians and was buried at Amphipolis with impressive pomp. From then on he was regarded as the founder of the city and honoured with yearly games and sacrifices. The Athenian population remained very much in the minority in the city and hence Amphipolis remained an independent city and an ally of the Athenians, rather than a colony or member of the Athens-led Delian League. It entered a new phase of prosperity as a cosmopolitan centre. Macedonian rule The city itself kept its independence until the reign of king Philip II () despite several Athenian attacks, notably because of the government of Callistratus of Aphidnae. In 357 BC, Philip succeeded where the Athenians had failed and conquered the city, thereby removing the obstacle which Amphipolis presented to Macedonian control over Thrace. According to the historian Theopompus, this conquest came to be the object of a secret accord between Athens and Philip II, who would return the city in exchange for the fortified town of Pydna, but the Macedonian king betrayed the accord, refusing to cede Amphipolis and laying siege to Pydna as well. The city was not immediately incorporated into the Macedonian kingdom, and for some time preserved its institutions and a certain degree of autonomy. The border of Macedonia was not moved further east; however, Philip sent a number of Macedonian governors to Amphipolis, and in many respects the city was effectively "Macedonianized". Nomenclature, the calendar and the currency (the gold stater, created by Philip to capitalise on the gold reserves of the Pangaion hills, replaced the Amphipolitan drachma) were all replaced by Macedonian equivalents. In the reign of Alexander the Great, Amphipolis was an