Muslims believe that Allah sent special people called prophets, to Earth.
The Ka’bah is the monument to the One God. It is a cube-shaped structure in the centre of the grand mosque in Makkah. First build by the prophet Adam , then was build by Prophet Ibrahim and Isma’il . These prophets and their follewers belived in the One True God. However after their died, people forgot their teachings about the One God. When prophet Muhammad was born, the Ka’bah had no fewer then 360 altars to different gods around it.