Muhammed was a very respected prophet that taught the word of god. Although the Mecca's threathed him to kill him and his followers, Muhammed never gave up. He fought for wat he wanted, and want he wanted was his religion to spread. He was Islam. Muhammed had spread Islam threw out many countires, like Arabia. At first Muhammed had no followers, but over time he grew more and more followers.
The reason why people were intrested in what he said, was because Muhammed had said that he had talked to an angel and the angel that told him to spread the religion of Islam. Many people had believed Muhammed and that In 622 Muhammad had became a prophet, and that is also a great reason why many people wanted to hear what he had to say.