Michael Hart, the author of the book "The 100 Most Influential People", it took him 28 years to complete it. He ranked Prophet Mohammad (PBUH) No 1 on the list.

While he was giving a lecture in London, he was booed and interrupted.
People were complaining as to why he ranked Prophet Muhammed (PBUH) as No 1?

He said:
"The Prophet Muhammad (PBUH) stood in the middle of Makkah in the year 611 and said to the people: 'I am the Prophet of Allah'.
Four people believed in him; his BEST FRIEND, his WIFE and two KIDS!
Now, even after 1400 years, the number of Muslims has gone over 1.5 billion and still expanding.
He could not have been a liar, because a lie will not last 1400 years! Nor could you fool 1.5 billion people!
Another thing to ponder is that even after all this time, millions of Muslims will not hesitate to sacrifice their lives over one word that would hurt their Prophet".

"Is there even one Christian willing to do that for Jesus?"

After that, there was DEAD SILENCE in the whole auditorium!