before AD 79
A graffito on a wall in Pompeii
Wall inscriptions from Pompeii, buried by the eruption of Vesuvius
Someone scratched on a wall: “I love her whose number is 545.” Another wrote that Amerimnus thought upon his lady Harmonia, and that the number of her honourable name is 45. Neither writer explains the method, because neither needed to.
What it settles: This is the strongest kind of evidence there is: casual, undated by its author, and sealed by a volcano in a year we know. Adding up the letters of a name was common enough to flirt in.
