History

Construction, inauguration, and Roman renovations

The site chosen was a flat area on the floor of a low valley between the Caelian, Esquiline and Palatine Hills, through which a canalised stream ran as well as an artificial lake/marsh. By the 2nd century BC the area was densely inhabited. It was devastated by the Great Fire of Rome in 64 AD, following which Nero seized much of the area to add to his personal domain. He built the grandiose Domus Aurea on the site, in front of which he created an artificial lake surrounded by pavilions, gardens and porticoes. The existing Aqua Claudia aqueduct was extended to supply water to the area and the gigantic bronze Colossus of Nero was set up nearby at the entrance to the Domus Aurea. Although the Colossus was preserved, much of the Domus Aurea was torn down. The lake was filled in and the land reused as the location for the new Flavian Amphitheatre. Gladiatorial schools and other support buildings were constructed nearby within the former grounds of the Domus Aurea. Vespasian's decision to build the Colosseum on the site of Nero's lake can be seen as a populist gesture of returning to the people an area of the city which Nero had appropriated for his own use. In contrast to many other amphitheatres, which were on the outskirts of a city, the Colosseum was constructed in the city centre, in effect, placing it both symbolically and precisely at the heart of Rome.

Construction was funded by the opulent spoils taken from the Jewish Temple after the First Jewish-Roman War in 70 CE led to the Siege of Jerusalem. According to a reconstructed inscription found on the site, "the emperor Vespasian ordered this new amphitheatre to be erected from his general's share of the booty." It is often assumed that Jewish prisoners of war were brought back to Rome and contributed to the massive workforce needed for the construction of the amphitheatre, but there is no ancient evidence for that; it would, nonetheless, be commensurate with Roman practice to add humiliation to the defeated population. Along with this free source of unskilled labor, teams of professional Roman builders, engineers, artists, painters and decorators undertook the more specialized tasks necessary for building the Colosseum. The Colosseum was constructed with several different materials: wood, limestone, tuff, tiles, cement, and mortar.

Construction of the Colosseum began under the rule of Vespasian in around 70-72 AD (73-75 AD according to some sources). The Colosseum had been completed up to the third story by the time of Vespasian's death in 79. The top level was finished by his son, Titus, in 80, and the inaugural games were held in 80 or 81 AD. Dio Cassius recounts that over 9,000 wild animals were killed during the inaugural games of the amphitheatre. Commemorative coinage was issued celebrating the inauguration. The building was remodelled further under Vespasian's younger son, the newly designated Emperor Domitian, who constructed the hypogeum, a series of tunnels used to house animals and slaves. He also added a gallery to the top of the Colosseum to increase its seating capacity.

In 217, the Colosseum was badly damaged by a major fire (caused by lightning, according to Dio Cassius) which destroyed the wooden upper levels of the amphitheatre's interior. It was not fully repaired until about 240 and underwent further repairs in 250 or 252 and again in 320. Honorius banned the practice of gladiator fights in 399 and again in 404. Gladiatorial fights are last mentioned around 435.[citation needed] An inscription records the restoration of various parts of the Colosseum under Theodosius II and Valentinian III (reigned 425-455), possibly to repair damage caused by a major earthquake in 443; more work followed in 484 and 508. The arena continued to be used for contests well into the 6th century. Animal hunts continued until at least 523, when Anicius Maximus celebrated his consulship with some venationes, criticised by King Theodoric the Great for their high cost. 

Significance in Christianity

The Colosseum is generally regarded by Christians as a site of the martyrdom of large numbers of believers during the persecution of Christians in the Roman Empire, as evidenced by Church history and tradition. On the other hand, other scholars believe that the majority of martyrdoms may have occurred at other venues within the city of Rome, rather than at the Colosseum, citing a lack of still-intact physical evidence or historical records. These scholars assert that "some Christians were executed as common criminals in the Colosseum-their crime being refusal to reverence the Roman gods", but most Christian martyrs of the early Church were executed for their faith at the Circus Maximus. According to Irenæus (died about 202), Ignatius of Antioch was fed to the lions in Rome around 107 A.D and although Irenaeus says nothing about this happening at the Colosseum, tradition ascribes it to that place.

In the Middle Ages, the Colosseum was not regarded as a monument, and was used as what some modern sources label a "quarry," which is to say that stones from the Colosseum were taken for the building of other sacred sites. This fact is used to support the idea that, at a time when sites associated with martyrs were highly venerated the Colosseum was not being treated as a sacred site. It was not included in the itineraries compiled for the use of pilgrims nor in works such as the 12th century Mirabilia Urbis Romae ("Marvels of the City of Rome"), which claims the Circus Flaminius - but not the Colosseum - as the site of martyrdoms. Part of the structure was inhabited by a Christian religious order, but it is not known whether this was for any particular religious reason.

Pope Pius V (1566-1572) is said to have recommended that pilgrims gather sand from the arena of the Colosseum to serve as a relic, on the grounds that it was impregnated with the blood of martyrs, although some of his contemporaries did not share his conviction. A century later Fioravante Martinelli listed the Colosseum at the head of a list of places sacred to the martyrs in his 1653 book Roma ex ethnica sacra. Martinelli's book evidently had an effect on public opinion; in response to Cardinal Altieri's proposal some years later to turn the Colosseum into a bullring, Carlo Tomassi published a pamphlet in protest against what he regarded as an act of desecration. The ensuing controversy persuaded Pope Clement X to close the Colosseum's external arcades and declare it a sanctuary.

At the insistence of St. Leonard of Port Maurice, Pope Benedict XIV (1740-1758) forbade the quarrying of the Colosseum and erected Stations of the Cross around the arena, which remained until February 1874.[64] Benedict Joseph Labre spent the later years of his life within the walls of the Colosseum, living on alms, before he died in 1783.[64] Several 19th century popes funded repair and restoration work on the Colosseum, and it still retains its Christian connection today. A Christian cross stands in the Colosseum, with a plaque.