When Islam was first founded there were some who considered it to be a heresy. 1

It wasn't until Mohammed was 40 years old that he claimed he was visited by the angel Gabriel and received his first revelation from God.

40 years is a long time, long enough to get around, maybe meet some Christians and learn about their doctrine, maybe even be baptized... Was Mohammed influenced by Christian ideology? Is it possible that he may have joined a Christian church before returning to Mecca and founding his own religion very similar to Christianity? Are there any theories about Mohammed once being a Christian?

1 St. John of Damascus’s Critique of Islam

  • 2
    I'm voting to close this question as off-topic because it is about the history of Islam. – Flimzy Apr 25 '15 at 2:24
  • This is addressed as part of my answer here – David Stratton Apr 25 '15 at 2:37

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