Thucydides, History of the Peloponnesian War
Benjamin Jowett, Ed.

11. Brasidas was buried in the city with public honours in front of what is now the Agora. The¹ whole body of the allies in military array followed him to the grave. The Amphipolitans enclosed his sepulchre, and to this day they sacrifice to him as to a hero, and have also instituted games and yearly offerings in his honour. They likewise made him their founder, and dedicated their colony to him, pulling down² the buildings which Hagnon had erected³, and obliterating any memorials which might have remained to future time of his foundation⁴. For they considered Brasidas to have been their deliverer, and under the present circumstances the fear of Athens induced them to pay court to their Lacedaemonian allies. That Hagnon should retain the honours of a founder, now that they were enemies of the Athenians, seemed to them no longer in accordance with their interests, and likely to be displeasing to him. [2] They gave back to the Athenians their dead, who numbered about six hundred, while only seven were slain on the other side. For there was no regular engagement, but an unforeseen circumstance led to the battle; [3] and the Athenians were panic-stricken before it had well begun. After the recovery of the dead the Athenians went home by sea. Clearidas and his companions remained and administered the affairs of Amphipolis.