Calling all armchair generals! Boudica's Last Stand.

[Nathan Ross]

Why not simply move the whole scenario forward one year?

I'd be okay with that. Although I still find 60-61 more likely. It's not a matter of Tacitus making a mistake - he may have been aware that the course of events stretched back before the beginning of the consular year. But giving accurate dates for events in distant provinces may not have been important to him as it is to us.

Tacitus had previously said that the revolt broke out during his consulship or, at least, during his consular year

Caesennio Paeto et Petronio Turpiliano consulibus gravis clades in Britannia accepta seems to refer to a single 'disaster'. But it could perhaps also mean a course of events covering some time, and stretching up to whenever Suetonius Paulinus was replaced as governor. As usual, Tacitus is not as explicit as we might like him to be.