How Christianity led to the end of gladiator combat.

The Christians also opposed the practice of crucifixion, infanticide, abortion and slavery with some political success during this time period.

Explanation:

Christianity was rapidly expanding and they would become a part of protest to such violent events such as the gladiators.  As the number of indoctrinated Roman citizens grew the number of spectators dwindled resulting in the end of this era of gladiator sport.

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."

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