Muhammad said

Since He Was Born And For Forty Years People Good And Bad Alike Called Him The Truthful Honest. An Orphan Who Grew Up To Be A Merchant Traveling Somewhere In A Harsh Desert No One Cared For Or For Its Ever Battling Tribes. Since The Archangel Gabriel Appeared To Him Initiating His Prophecy Islam Has Spread Exponentially. Just To Give Up His Message They Offered Him All The Money In His World All The Power And Influence Imaginable Yet He Declined Simply Stating He Was Sent To Reform People Not To Rule Them. On The Day He Passed Away He Barely Had Any Thing In His Modest Room Few Pieces Of Stall Bread And The Clothes On His Back. Within Few Decades From The Day He Announced His Message The Two Mighty Empires Roman And Persian Crumbled Under The Wave Of Islamic Civilization. Some Researchers Believe That Not Only The Advancement Of The Islamic Civilization And Its Scientific Achievements Was The Bedrock Of The European Civilization That Followed But Also In Itself The Islamic Era Was The Zenith Of Our Human Civilization To Date. Over A Billion People Today Believe He Changed The Course Of Humanity Positively And Forever Like No Other Man Has Ever Done. Yet Till The Day He Passed Away Mohammad Didn'T Read And Didn'T Write. It Must Have Been What He Said Here It Is.