Spread of Islam

So Muhammad ruled Mecca and also some of the Arabian peninsula. But one day he felt tired and he layed down to rest and he never woke up! He was dead! The Islamic people were afraid, who would be their prophet and tell them the desires of Allah. But then Abu Bakr the friend of Muhammad said that he could be the prophet and the people relaxed a bit but not all the way. Abu Bakr was a good leader but he was not as strong as Muhammad he was thin and wore ragged clothes. He still sent armies to conquer other places and spread Islamic to those places. He was the first Caphir of the Islamic people. There were many other Caphirs and they conquered other places and they also conquered some of the Byzantine empire. That is how they spread Islamic by force do you think that is a good way to spread a religion, it's kind of like forcing people to do it when they don't want to I don't like that. The Caliphs had built a new capital for the Islamic empire. It's name was Baghdad. It was a good capital and it was a good trading place. They traded gems gold and food.