What marked the official transition from roman republic to roman empire?

judaism, christianity and islam, are all abrahamic religions and therefore have in common the hebrew idea of a single god which is the source of all morality. the idea of the covenant is only related to judaism, while dharma is a concept of indian religions and the four noble truths are basic principles of buddhism.

this is a good question! i'll do some research and come back when i have the answer!