(Matthew 26: 26-28) In the Last Supper Jesus told his deciples the bread was like his body and the wine was like his blood. His body was broken to pay for our sins, (hence, the "breaking of bread").
As far as whether or not it is unique to Christianity, I'm pretty sure Christians are the only ones who normally perform the ritual.
The date for the origin of Christianity is Pentecost in 33 A.D. with the coming of the Holy Spirit upon the Apostles.
Jerusalem
Jerusalem
The place of origin of Buddhism was Nepal, India while the place of origin of Christianity was Jerusalem.
Christianity is one source.
jesus's birth
Christianity stared in Israel. After the death of Christ.
Where is the origin of Christianity? Jesus is the origin of Christianity. He is in heaven, at the right hand of the Father, and with his people.Where was the origin of Christianity? Jesus lived in the Roman province of Galilee and spend much time in Judea. These are in the land that is now Israel and the occupied Palestinian West Bank. Jesus died and was resurrected just outside Jerusalem, which would be in today's Jerusalem.
The origin of Christianity is not really mentioned and it is from the time of Jesus and the Pentecost. First Christian is those who follow Jesus his apostles and disciples.
the origin of Christianity, Islam, and Judaism
Christianity began when Jesus of Nazareth began his ministry in Judea (now Israel)
Not a lot, other than its origin.