542 CE
The year the plague reached Constantinople, in the spring.
542 CE
The Plague at Constantinople
Procopius, History of the Wars, Book 2 (chapters 22–23) · c. 550 (events of 542; Books 1–7 made public in 551 at the earliest)
2.22.9
ἀρξαμένη δὲ ἀεὶ ἐκ τῆς παραλίας ἡ νόσος ἥδε, οὕτω δὴ ἐς τὴν μεσόγειον ἀνέβαινε χώραν. δευτέρῳ δὲ ἔτει ἐς Βυζάντιον μεσοῦντος τοῦ ἦρος ἀφίκετο,
The disease always started on the coast and moved from there up into the inland country. It reached Byzantium in the second year, in the middle of spring,