430 BCE
The second year of the Peloponnesian War, when the plague reached Athens.
430 BCE
The Plague at Athens, and Pericles Answers the Athenians
Thucydides, History of the Peloponnesian War, Book 2 (sections 47–65) · after 430 BCE (events of 430–429 BCE)
2.49.1
τὸ μὲν γὰρ ἔτος, ὡς ὡμολογεῖτο, ἐκ πάντων μάλιστα δὴ ἐκεῖνο ἄνοσον ἐς τὰς ἄλλας ἀσθενείας ἐτύγχανεν ὄν· εἰ δέ τις καὶ προύκαμνέ τι, ἐς τοῦτο πάντα ἀπεκρίθη.
Everyone agreed that this year had been freer of other illnesses than any other, and anyone who was already sick with something found it turning into this.