1911 Encyclopædia Britannica, Volume 10… (1911)
“ In the history of the Roman and Later Roman empires the factions (factiones) of the circus and hippodrome, at Rome and Constantinople, played a prominent part in politics. The factiones were properly the four companies into which the charioteers were divided, and distinguished by the colours they wore. Originally at Rome there were only two, white (albata) and red (russata) , when each race was open to two chariots only; on the increase to four, the green (prasina) and blue (veneta) were added. At Constantinople the last two absorbed the red and white factions. ”
