ROME TO THE END OF THE REPUBLIC 345
cement, at its top, and thereby ensured that the carefully maintained level of the water
channel would not be interrupted by the river valley. Each story contained typical round Roman
arches, the uppermost level (with the water channel on top), the smallest, marked by the smallest
arches.
The Theater of Pompey and the Circus Maximus
Republican Rome also saw the building of theaters, under Greek influence, and formal structures
for amusement, notably the Circus Maximus. The early Theater of Pompey (55 BC) would remain
the city’s most important. The general Pompey, after winning victories in the eastern Mediterra-
nean, celebrated by building Rome’s first stone theater and an enclosed peristyle garden behind.
Although the theater was often rebuilt in antiquity, being much favored by emperors, only the
substructure of the cavea still remains; in addition, its contours are preserved in the modern
street plan of Rome. More details are known thanks to mentions in literary sources and to its
appearance in the surviving fragments of the Forma Urbis, a marble plan of the city carved in the
Severan period between AD 203 and 211 (Figure 20.11).
The theater is based on Greek models, since theater originated as a Greek practice. The-
aters of both wood and stone had already been in use in Italy, especially in southern areas
under more direct Greek influence. Although theatrical performances had originated in Greek
religious practice, evidently by the first century BC that association had diminished. Pompey
renewed this religious connection by having a Temple to Venus Victrix constructed at the top
of the cavea, facing the stage, and three, perhaps four, additional shrines. Subsequent Roman
theaters did not include such temples. Greek theaters were built on hillsides; this one was not,
but instead, profiting from Roman technological advances, was erected on vaults of concrete
faced in part with opus reticulatum. The plan departs from the typical Greek theater in hav-
ing a semicircular cavea. Seating is estimated at 11,000. But it still has open parodoi and a low
wide stage, probably made of wood but decorated with portrait sculpture. During the empire
Roman theaters would be much elaborated. The cavea and stage building were connected in
a single unified structure. Multi-story stage buildings, decorated with marble revetments, fea-
tured complex architectural frameworks of architraves and columns, creating niches for the
display of full-size statues.
The Circus Maximus, Rome’s oldest and largest track for horse racing events, was laid out
south of the Palatine Hill in the early Republic. The first starting gates, probably wooden but
painted in bright colors, are dated to 329 BC. The long narrow track was divided lengthwise
down the middle by the spina, at first only a natural stream that happened to run through this
area, but later elaborated with bridges and structures holding sculpture and such other monu-
ments as an obelisk of the Egyptian king Ramses II. Enlargement to its final size, 621m × 118m,
took place in the late Republic. Seating in permanent materials was eventually provided in the
lowest of the three cavea zones, first wooden seats, later stone. According to Pliny, maximum
capacity was 250,000, a number that indicates the huge popularity of the favorite event, races of
chariots drawn by four horses. Teams, or factions, were like modern professional sports teams,
with directors and patrons and full support staff as well as the racers themselves, and of course
followed by avid fan groups. A race normally consisted of seven laps around the spina; a full day
consisted of twenty-four races.