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295 BCE: The first temple to Venus is dedicated on Rome's Aventine Hill.
292 BCE: The Romans adopt the Greek god of medicine Asclepius by stealing his sacred snake from Epidaurus and setting up a temple on the Tiber Island.
263 BCE: A shrine is dedicated to Minerva on the Aventine in Rome.
225 BCE - 150 BCE: The Temple of Hercules is built at Ostia.
186 BCE: The Roman Senate bans the Cult of Bacchus.
146 BCE: First Roman all-marble building is constructed, the temple of Jupiter Stater in Rome.
2 BCE: The Temple of Mars Ultor in Rome is inaugurated by Augustus.
1 CE - 100 CE: Mithraism spreads in the Roman empire.
14 CE: The Temple of Rome and Augustus is built at Ostia.
42 CE - 62 CE: St. Paul goes on missionary journeys across Asia Minor, Greece, and Rome.
50 CE - 60 CE: Establishment of various Christian communities in the Eastern Mediterranean, Greece, Egypt, and at least the city of Rome.
64 CE: Unofficial persecution of Christians in Rome.
66 CE - 73 CE: The Jewish Revolt against Rome.
110 CE: First documented martydom in the Colosseum of Rome, that of St. Ignatius of Antioch.
125 CE: The Pantheon is completed in Rome.
284 CE - 305 CE: Reign of Roman Emperor Diocletian.
306 CE - 337 CE: Reign of Roman Emperor Constantine I.
313 CE: The Edict of Milan enacted by Constantine I.
325 CE: Roman Emperor Constantine I calls the Council of Nicaea.
608 CE: The Pantheon in Rome is converted into a Christian church.