Well, if you mean the start within the beliefs then the answer is in the beginning of time, if you mean the separation between Judaism and Christianity then the birth of Jesus in Bethlehem and the belief of him being the Messiah, if you mean the beginning of the followers this would be in Israel.
The beginning of Christianity was in Israel at Pentecost when the Holy Spirit came on the disciples to form the Catholic Church.
The settlers who came form Europe were Christians. They set up Christan churches right form the beginning.
I think defined not redefined, because that was just the beginning of Christianity so Paul was defining what Christianity is.
Christianity is often considered as beginning at Pentecost, most likely in 33 AD.
Check out the book of Acts in the Bible.
new start, fresh start/beginning, start from scratch, rebirth
Jesus Jesus Christ was the beginning of Christianity. Paul tought Christianity after Christ and his appostles were killed off.
Judaism & Christianity started with God's Covenant with Abraham.
Jamestown
That is the correct spelling of the word "beginning" (start, or starting). beginning
The ideas of Christianity started in Judea with the teaching of Jesus Christ.