When and where were the followers of Jesus first called Christians?

In Antioch, around 40 to 45 CE.

And the disciples were called Christians first in Antioch. Acts 11:26

Somewhere in North America in 73 BCE.

All those who were true believers in Christ took upon them, gladly, the name of Christ, or Christians as they were called, because of their belief in Christ who should come.Alma 46:15