Answer:
Christianity was originated from province of roman in the 1st century.
Step-by-step explanation:
There was a man in roman, Jesus, who was the prophet of God. He proclaimed the oneness of God and ask people to believe on it. People crucified him at 30-30 AD. His followers believed that he was raised by Allah towards sky and one day He will return back to this world. Christianity was originated from there. After that, it went to eastern and western areas. it was rapidly flourished to china, south Korea, and sub-Saharan Africa in the last century. Iran also has many Christians.