It wasn't Mohammed who founded Islam.

[pocaracas]

The things you find when you're looking for them...

http://www.wsj.com/articles/SB122669909279629451

Muhammad Sven Kalisch, a Muslim convert and Germany's first professor of Islamic theology, fasts during the Muslim holy month, doesn't like to shake hands with Muslim women and has spent years studying Islamic scripture. Islam, he says, guides his life.

So it came as something of a surprise when Prof. Kalisch announced the fruit of his theological research. His conclusion: The Prophet Muhammad probably never existed.
[...]
Prof. Kalisch, who insists he's still a Muslim, says he knew he would get in trouble but wanted to subject Islam to the same scrutiny as Christianity and Judaism. German scholars of the 19th century, he notes, were among the first to raise questions about the historical accuracy of the Bible.

Many scholars of Islam question the accuracy of ancient sources on Muhammad's life. The earliest biography, of which no copies survive, dated from roughly a century after the generally accepted year of his death, 632, and is known only by references to it in much later texts. But only a few scholars have doubted Muhammad's existence. Most say his life is better documented than that of Jesus.
[...]
He had no doubts at first, but slowly they emerged. He was struck, he says, by the fact that the first coins bearing Muhammad's name did not appear until the late 7th century -- six decades after the religion did.

He traded ideas with some scholars in Saarbrücken who in recent years have been pushing the idea of Muhammad's nonexistence. They claim that "Muhammad" wasn't the name of a person but a title, and that Islam began as a Christian heresy.

Prof. Kalisch didn't buy all of this. Contributing last year to a book on Islam, he weighed the odds and called Muhammad's existence "more probable than not." By early this year, though, his thinking had shifted. "The more I read, the historical person at the root of the whole thing became more and more improbable," he says.

He has doubts, too, about the Quran. "God doesn't write books," Prof. Kalisch says.

This... from way back in 2008.