After the arrival of Europeans, the greatest number of Indians died as a result of

As a result of diseases.

Explanation:

The Spanish and other Europeans that arrived in the New World in the 16th century brought diseases that were unknown among the Indian peoples and for which the local human population did not have anti-bodies , immunological resistance. Good examples are smallpox and siphyllis. It is impossible to know today how many Indians died because of sickness caused by the new viruses and bacteria, but some estimates put it in some 40-60 millions deaths, or some sources put even around 100 million deaths.

the results of roman expansion produced social conflict and civil war. julius caesar gained power and became a dictator but was then assassinated. the reign of augustus began a long period of imperial rule and peace in the roman empire. rome faced the problems of how to maintain peace, law, and order.

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