Roman Empire

Julius Caesar was assassinated because he had acquired too much power and showed no signs of relinquishing any of it. His popularity with the people made him a threat to the power of the Roman senators, who feared he would end the republic and assume sole power. His killers included the senators who opposed his policies.

Christianity did not contribute to the fall of the western part of the Roman Empire. Some pagan Romans believed that it weakened the Romans by weakening their fighting spirit. This was untrue and this view reflected their dislike for and bias against Christianity. The Christian emperors of the later Empire were as resolute in trying to defend the Roman Empire as the previous pagan emperors had been.

The co-emperors Gratian and, especially, Theodosius I (or the Great) aimed at religious uniformity. Their Edict of Thessalonica (380) made mainstream Christianity the sole legitimate religion of the empire and banned dissident Christian doctrines, which were branded heretic. The main target was Arian Christianity which was the main dissident Christian doctrine and was popular around the empire. Theodosius immediately started persecuting the Arians. He also persecuted Roman religion and other pagan creeds, particularly Manichaeism which was briefly the main rival to Christianity in the competition to replace classical paganism.

Theodosius promoted greater religious uniformity in the Roman Empire and, through this, greater cohesion. The western part of the Roman Empire fell under the weight of the invasions by the Germanic peoples. The Germanic invaders were also Christians even though they had been converted to the Arian form of Christianity, The eastern part of the Roman Empire, which was just as Christian as the western part, was not affected by these invasions and continued to exist for nearly 1,000 years.

Mainstream Christianity was 'Western or Latin Christianity' and 'Eastern or Greek Christianity.' The former was the main form of Christianity in the western part of the Roman Empire and the latter the main form in the eastern part. Later they came to be called Catholic and Orthodox respectively.

They defeated the Etruscans >=]:

they ambushed the north Italian's "sorry if spelled wrong"

they killed everyone in the south

The Formation of the first Triumvirate