Romans had “Beware the dog” signs too
The ruins of Pompeii were first discovered in the late 16th century. The city was so well preserved that it gave invaluable insight into how people lived in ancient Rome. This mosaic was found in what was dubbed “The House of the Tragic Poet” because of the Illyad-themed frescoes that adorn some of the rooms.
It is located in the vestibule, a room that separates the interior of the house from the street, and the words read “cave canem” in Latin, which translates into “beware of dog.” Researchers believe it served as protection to keep others out of the family’s private quarters.