With more than 1 billion members, it's the largest branch of Christianity
When the Church says that there are 1 billion catholics in the world, they 
mean that... [DOC] [TLE] Christian Branches & Denominations - Felix Just, SJ [PAR] At the most basic level, a Christian is anyone who professes that Jesus of 
Nazareth is ... Major Branches of Christianity - one of the best objectively neutral 
diagrams ... and thus was founded already in the first century, rather than some 
time later.