A closer look
Roman graffiti was way more sophisticated than drawing genitalia on tavern walls. The Sator Square is a mesmerizing 5x5 grid of Latin words (SATOR AREPO TENET OPERA ROTAS) that reads exactly the same forwards, backwards, up, and down. Found buried under the ashes of Pompeii and scattered across Europe, archaeologists still bicker over whether it was an incredibly clever early Christian secret code or just a magical ward against evil. Either way, it's the ultimate ancient Sudoku.





