The emperor who finally allowed Christianity in ancient Rome was Emperor Constantine, but he did not close down the pagan temples. It wasn't until he died and his son, Constans, took over the Western portion of the nation that the old forms of Grecco-Roman pagan worship were banned and those who still followed the religion were threatened with the death penalty. It was then that the destruction of old temples began, though it was most by citizens and not by armies under the order of the emperor (though I'm sure he encouraged it, even if he didn't order it). Temples that survived the pillaging and destruction were converted to Christian churches. In 391, Theodosius banned all forms of non-Christian worship (instead of exclusively banning Grecco-Roman polytheism) putting the final nail in the old pagan religion's coffin, so to speak.
The roman emperor in 394 was Theodosius I who banned and persecuted anything which was not Christian. The Olympics, long with all pagan temples were either banned or destroyed and the pagans persecuted.
The ancient Olympics were dedicated to the pagan gods. As the Roman empire had Christianity imposed on it, such institutions were abolished. The emperor Theodosius ended the games in 393 AD. He also closed pagan temples and destroyed most to the ancient Greek sculptures, as they were almost all images of gods and goddesses -- i.e., pagan idols.
Roman (pagan) emperor Constantine.
The Olympics were banned in 393 AD by the Roman Emperor Theodosius. At that time, Christianity was the religion of the Roman Empire. The Emperor saw the Olympic Games as a pagan celebration in honor of pagan gods.
The Roman Emperor Nero was raised in the Roman pagan religion, but he eventually turned against it and persecuted Christians in the Roman Empire.
Justinian.A.D 526
Roman Emperor at the time primarily consisted of Pagan faith, and when the Christians were discovered amongst them they were persecuted.
Emperor Theodosius declared Christianity the state religion in 380 or 381, and then in 391 banned the public worship of the pagan gods although probably more than half the population were still pagans.
EvangelismState patronage, beginning with Emperor ConstantinePersecution of the pagan templesImperial dictate, beginning with Emperor Theodosius
The Romans imposed limitations of the freedom of the Greeks, but these were later relaxed. Greek culture had a strong influence of Roman culture. Greeks became integrated with the economy of the empire and benefited from it. When the Roman Emperor Theodosius I made Christianity the state religion of the empire, he suppressed pagan religions, including the Greek one, and destroyed many temples.
They were held in honour of the god Zeus. Christian emperor Theodosius showed his Christian tolerance by banning them.
Mostly with bloodshed.AnswerConstantine: Co-signed an edict that provided freedom of religion for mainstream ChristiansGave Christianity state patronageProvided generous state stipends for the Christian clergyExpended considerable state funds on the construction of magnificent churchesEncouraged those with ambition to see that conversion to Christianity would best serve their interestsRefused to perform the ancient rites in the Roman emperor's traditional function as high priest, a public snub to paganismPersecuted the pagan religionRemoved a number of important pagan temples, although he permitted the construction of othersAs the army refused to participate, humiliated the pagan priests by sending Christians to plunder the treasures of the pagan temples for the imperial treasury.AnswerConstantine was a Roman emperor, who practiced Roman Paganism for most of his life. In 313 he converted to Christianity and stopped the persecution of early Christians and allowed them to build churches and convert Pagan's to worship Christ, which enabled Christianity to completely destroyed Paganism and spread across the world. AnswerHe supported the Christian Church. AnswerConstantine was the first openly Christian Roman emperor. AnswerConstantine gave Christianity state patronage, including considerable financial assistance. He allowed the Church to distribute state food aid to the poor, allowing the Christians to proselytise to their captive audiences, who also saw that many of the elite were adopting Christianity out of ambition. The pagan temples were plundered for their treasures and some occasional persecution of pagans instituted. Bribes were offered to city administrators who demolished all the pagan temples in their jurisdictions, and to Roman citizens who converted. By the time of Constantine's death, Christianity had grown enormously, although still constituting a minority of the population.