I would say only the strong survived and most of them were reptiles; so there you go.
The columbian exchange was ironic because a huge disease broke out when new settlers came to Europe
The best option regarding the popularity of Christianity in the Roman empire would be that "<span>Unlike mainstream Roman religion, in Christianity a person's rank or status was not the measure of their spiritual value," although it should be noted that a bigger reason was Constantine's conversion to the Christian faith. </span>
The 18th Amendment, when ratified in 1919, prohibited the sale and consumption of "alcohol," although it was quickly revealed that this was a bad idea, and the Amendment was later overturned.