In the 1970s, two Roman inscriptions — dated from 245 to 253 AD — were discovered in Écija (known in ancient Roman times as Astigi), a city in Spain's southern province of Seville. The writings on the tablets suggest that the emperor at the time had exempted the Roman province of Baetica (roughly the equivalent of modern-day Andalusia, a region of southern Spain) from taxes...A gigantic tsunami that began in the Bay of Cadiz crashed into land, causing numerous coastal settlements to be abandoned and engulfing everything its path, including the city of Seville, located 45 miles inland from the...