These groups were organized by slightly curved carceres, including at a festival held a day before the Ides of March at the Campus Martius. People were organized according to these groups by Constantine Flavius to quickly repair the Theodosian Walls before Attila could siege Constantinople. A eunuch with a bag of gold appealed to agitated men associated with one of these groups (10[1])to leave the coronation of Hypatius. Gaius Appuleius Diocles earned enormous wealth as part of these groups, who used a biga or quadriga. People changed from chanting the names of these groups to the word for “victory” during an event quelled by Narses; that event was sparked by rivalry between these groups called the Blues and Greens. For 10 points, name these groups whose supporters sparked the Nika Riots while competing in the Hippodrome. ■END■