Final answer:
The Colosseum in Rome was constructed between 72-80 CE and was officially dedicated in 80 CE by the emperor Titus. It hosted various gladiator fights and could accommodate over 50,000 spectators.
Step-by-step explanation:
The Colosseum in Rome was constructed between 72-80 CE. It was officially dedicated in 80 CE by the emperor Titus in a ceremony that included one hundred days of games. The Colosseum was known for hosting gladiator wars, animal fights, and other spectacles, and it could seat over 50,000 spectators.