The Colosseum is in Rome and was built around 70 AD was used for entertainment gladiator fight and animal slaughterers. And reenacting t naval battles there was one battle that was 123 days long and there was about 12,000 animals that died.It was built by the emperor Vespasian.
Nardo,Don.Ancient Rome. Green haven press inc.2002.
How it affected the city of Rome
The people of Rome were to busy to watch fights then doing there job.
The coliseum was a big part in Roman engineering it was one of the biggest amphitheater it could fit about 50,000 to 80,000 people.
The emperors that used the coliseum was Titus, Vespasian,Domitian