what was this used for?
gladiatorial contests and public spectacles such as mock sea battles,  animal hunts, executions, re-enactments of famous battles, and dramas based on Roman mythology.
Colosseum
 it was used for gladiatorial contests and public spectacles such as mock sea battles (for only a short time as the hypogeum was soon filled in with mechanisms to support the other activities), animal hunts, executions, re-enactments of famous battles, and dramas based on Roman mythology.
who brought the third punic war to a successful conclusion Scipio Aemilianus when did this war begin and end? From 149 to 146 BC between which two civilizations this war was fought? Carthage and Rome what was the reason for this war? Scipio Africanus imposed a peace treaty on the Carthaginians which stripped them of their overseas territories, and some of their African ones. An indemnity of 10,000 silver talents was to be paid over 50 years. where is the civilization or the city latter mentioned located? Italy how can you describe its local government? It constitutes a comune "speciale", named "Roma Capitale", governed by a mayor and a city council. which pilgrimage site does the city has? Pilate's stairs, the "Scala Santa" and churches like San Luigi dei francesi and Santa Maria dell'Anima, to name a few. which is the common dialect spoken there? The Tuscan dialect and the Romanesco. can you mention some ancient monuments of this place? The Colosseum, the Roman Forum, the Domus Aurea etc. when was this first ancient monument built? Began in  AD 72 and was completed in AD 80.
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Colosseum [SEP] Introduction
The Colosseum could hold an estimated 50,000 to 80,000 spectators at various points of its history over the centuries, having an average audience of some 65,000; it was used for gladiatorial contests and public spectacles such as mock sea battles (for only a short time as the hypogeum was soon filled in with mechanisms to support the other activities), animal hunts, executions, re-enactments of famous battles, and dramas based on Roman mythology. The building ceased to be used for entertainment in the early medieval era. It was later reused for such purposes as housing, workshops, quarters for a religious order, a fortress, a quarry, and a Christian shrine.