They were hindered by economic development and lack of enforcement, so I'd say 1. Cost, because no one would pay for it.
Monarchy, republic, it made martyrs of the Christian people, and Augustus, Constantine, Diocletian I believe
Answer:
Holocene era
Explanation:
The Holocene is a geological epoch which began at the end of the Pleistocene (at 11,700 calendar years BP) and continues to the present. The Holocene is part of the Quaternary period.
The creation of the Atlantic trade network greatly facilitated the spread of Christianity.
Christianity is your answer.
The cross is a really meaningful symbol
