Katrina Genuis Vancouver, Canada   Pero and Cimon Fresco, 50 to 79 CE, unknown artist, Pompeii, Casa IX. Copyright of photograph attributed to Stefano Bolognini. Two thousand years ago, the Roman writer Valerius Maximus documented a particularly strange set of events. In his collection Memorable Doings and Sayings, Maximus recounts thousands of episodes of exemplary…