"There were dozens of varieties by the end of the 2nd century." - sir
"To paraphrase the Geico commercials: "15 minutes on Wikipedia could save you endless embarrassment when posting to the web." -sir
Christianity, in its earliest days, shared a good deal in common with the many “mystery religions” which became popular in the Roman Empire. In fact, it’s hard not to place Christianity among the mystery religions (even though Christian apologists refuse to do this).
So I should have used "congregations" instead of "churches".
In the first and second century, the basic unit of Christianity was the localized church. Each of these churches appears to have had its own collection of sacred writings, and its own concept of Christianity. It was like Wiccan meet Jesus.
At any rate, the main authority of each individual church lay in its assembly of elders. Collectively, they determined the teachings of that church, and ensured that they were distributed to the members.
So, you were right in both statements. First, if we are talking semantics, there were dozens of varieties by the end of the 2nd century, even if there were more wiccans that anything else before various "Church Fathers" developed an “orthodox” and uniform doctrine, and a Church based upon it. Records of other and/or older doctrines were either suppressed, or misrepresented, in intervening centuries. So again, I don't know if you could call whatever they have before Christianity until someone put their crap together.
Second, 15 minutes on Wikipedia could save you endless embarrassment when posting to the web, even though some of us need 16 minutes.
Take care,
Ismael