What year marked the start of construction of the Colosseum?

The Colosseum or Coliseum, also known as the Flavian Amphitheatre, is an oval amphitheatre in the center of the city of Rome, Italy. Built of concrete and sand, it is the largest amphitheatre ever built. Construction began under the emperor Vespasian in AD 72, and was completed in AD 80 under his successor and heir Titus.

Although partially ruined because of damage caused by earthquakes and stone-robbers, the Colosseum is still an iconic symbol of Imperial Rome. It is one of Rome's most popular tourist attractions and also has links to the Roman Catholic Church, as each Good Friday the Pope leads a torchlit "Way of the Cross" procession that starts in the area around the Colosseum.

Because of the ruined state of the interior, it is impractical to use the Colosseum to host large events; only a few hundred spectators can be accommodated in temporary seating. However, much larger concerts have been held just outside, using the Colosseum as a backdrop. Performers who have played at the Colosseum in recent years have included Ray Charles (May 2002), Paul McCartney (May 2003), Elton John (September 2005), and Billy Joel (July 2006).

The name Colosseum has long been believed to be derived from a colossal statue of Nero nearby (the statue of Nero was named after the Colossus of Rhodes). This statue was later remodeled by Nero's successors into the likeness of Helios (Sol) or Apollo, the sun god, by adding the appropriate solar crown.