Roman Empire Fan loyalty was fierce and at times erupted into sports riots. Racing was perilous, but charioteers were among the most celebrated and well-compensated athletes. One star of the sport was Diocles, from Lusitania (present-day Portugal), who raced chariots for 24 years and had career earnings of 35 million sesterces. Horses had their fans too, and were commemorated in art and inscriptions, sometimes by name. The design of Roman circuses was developed to assure that no team had an unfair advantage and to minimize collisions ("naufragia," "shipwrecks"), which were nonetheless frequent and spectacularly satisfying to the crowd. The races retained a
Sinking of the RMS Lusitania these; experts agreed they were not to blame for the second explosion. Allegations the ship was carrying more controversial cargo, such as fine aluminium powder, concealed as cheese on her cargo manifests, or guncotton (pyroxylene) disguised as casks of beef, have never been proven. In the 1960s, American diver John Light did several dives on the wreck, trying to prove the existence of contraband explosives in "Lusitania" 's cargo hold, ignited by the torpedo. Light claimed to have found a large hole on "Lusitania" 's port side, opposite of where the torpedo had struck, though later expeditions disproved his findings.