Prophet Muhammad is a direct descendant of Ishmael, the first son of Abraham (peace be on all prophets). Muhammad was born in Makkah in 570 CE.
Kaaba is a small cubical house in Makkah, first built by Prophet Abraham and Ishmael. It is the place where Abraham had left baby Ishmael and his mother Hager, by the command of God. It is the house towards which all muslims face in prayers. It is also the house visited by millions of muslims during Hajj (yearly pilgrimage), and other times.
By the time Muhammad was twenty five, he had become well known in the city (Makkah) for the integrity of his disposition and the honesty of his character. He became known as the trustworthy, and the truthful.
Prophet Muhammad was 40 years old, when he was visited by angel Gabriel (peace be on him), received his first message from God. These visits continued for the next 23 years until his death. All of the message thus received were put together by the Prophet Muhammad in a book called The Holy Qur'an.
For moslems, the Holy Qur'an is the words of God. The Holy Qur'an consist of 114 chapters of varying length. Each chapter is made up of single or multiple revelations. Chapter names are based on a word that appears in the chapter itself. In the interpretation of the verses, historic sontext, events that moslems were facing at that time, and the Sunnah matter.