Read the passage from Sugar Changed the World.When the prophet Muhammad began preaching in A.D. 610, he attracted only a few disciples. Yet by the time he died in 632, his faith had spread throughout Arabia. By 642, the armies of Muslim conquerors, along with the arguments of the Muslim faithful, took the religion all across Syria, Iraq, parts of Iran, and Egypt. From there, Islam spread through North Africa along the Mediterranean, across to the Iberian Peninsula, and over to France. Islam's march into Europe ended in 732, when the French defeated the Muslim armies at the battle of Poitiers. But that was not all. Muslim rulers took Alexander's old lands in Afghanistan and then, from there, swept through to conquer northern India. The pagan tribes of Central Asia chose Islam. By conversion or conquest, Islam, the religion of Muhammad, won over nearly all the lands of the ancient world: Egypt, Persia, India, and the Christian Mediterranean.