What year did the early Christian era start?

around the year 27–30

Explanation:

We can fix the first stage in the history of Christianity, as a diverse phenomenon from the preaching of Jesus, around the year 27–30, when the Church is structured around the monarchical bishopric.

During this period, the difference is established between an apostle, an itinerant bishop without a diocese, and a bishop, and an apostolic successor.

the ancient greek people valued the "country's laws" and expected citizens to show "respect" to such laws. however, the people valued divine authority above human authority and expected their leaders to honor the gods through their laws. they believed that those who respected the gods and ruled according to divine authority would obtain "high honors" by the people.

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answer; i believe that the correct answer is (chronological order);