The Colosseum or Coliseum, originally known as the Flavian Amphitheatre (Latin: Amphitheatrum Flavium, Italian Anfiteatro Flavio or Colosseo), is a giant amphitheatre in the centre of the city of Rome. Originally capable of seating 45,000-50,000 spectators, it was used for gladiatorial contests and public spectacles. It was built on a site just east of the Roman Forum, with construction starting between 70 and 72 AD under the emperor Vespasian.