Michael Hart, The author of the book: " The 100 most influential people ", that took him 28 years to complete. He ranked Prophet Mohammad (peace be upon Him) number one on the list. He was giving a lecture in London, he was booed and interrupted. People were complaining why he ranked the Prophet number one. He said:" The Prophet Mohammad stood in the middle of Makkah in the year 611, he 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 billion and still expanding, He could not have been a liar, because a lie will not last 14 00 years, nor could you fool 1 billion people. Another thing, 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 one Christian willing to do that for Jesus? After that there was dead silence in the whole auditorium.