Overview
Muhammad unified Arabia into a single religious polity under Islam. Muslims and Bahá'ís believe he is a messenger and prophet of God. The Quran, the central religious text in Islam, alludes to Muhammad's life. Muhammad's life is traditionally defined into two periods: pre-hijra (emigration) in Mecca (from 570 to 622 CE) and post-hijra in Medina (from 622 until 632 CE). There are also traditional Muslim biographies of Muhammad (the sira literature), which provide additional information about Muhammad's life. Muhammad is almost universally considered by Muslims as the last prophet sent by God to mankind. While non-Muslims regard Muhammad as the founder of Islam, Muslims consider him to have restored the unaltered original monotheistic faith of Adam, Noah, Abraham, Moses, Jesus, and other prophets.
Childhood
Muhammad was born around the year 570 CE to the Banu Hashim clan of the Quraysh tribe, one of Mecca's prominent families. His father, Abdullah, died almost six months before Muhammad was born. According to Islamic tradition, Muhammad was sent to live with a Bedouin family in the desert, as desert life was considered healthier for infants. Muhammad stayed with his foster mother, Halimah bint Abi Dhuayb, and her husband until he was two years old. At the age of six, Muhammad lost his biological mother, Amina, to illness and was raised by his paternal grandfather, Abd al-Muttalib, until he died when Muhammad was eight. He then came under the care of his uncle Abu Talib, the new leader of Banu Hashim.
Adolescence and Early Adulthood
While still in his teens, Muhammad accompanied his uncle on trading journeys to Syria, gaining experience in commercial trade, which was the only career open to him as an orphan. Islamic tradition states that when Muhammad was either nine or twelve, while accompanying a caravan to Syria he met a Christian monk or hermit named Bahira, who is said to have foreseen Muhammed's career as a prophet of God. Little is known of Muhammad during his later youth; available information is fragmented, and it is difficult to separate history from legend. It is known that he became a merchant and "was involved in trade between the Indian ocean and the Mediterranean Sea." Due to his upright character during this time, he acquired the nickname "al-Amin," meaning "faithful, trustworthy," and "al-Sadiq," meaning "truthful."
Muhammad worked as a trader for Khadija, a widow, until he married her in 595 CE at the age of 25. The marriage lasted for 25 years and was reported to be a happy one. Muhammad relied upon Khadija and did not enter into a marriage with another woman during his first marriage. After Khadija's death, Khawla bint Hakim suggested that Muhammad that should marry Sawda bint Zama, a Muslim widow, or Aisha, daughter of Um Ruman and Abu Bakr of Mecca. Muhammad is said to have asked for arrangements to marry both.
According to a text collected by historian Ibn Ishaq, Muhammad was involved with a well-known story about setting the Black Stone in place in the wall of the Kaaba in 605 CE. The Black Stone, a sacred object, had been removed to facilitate renovations to the Kaaba. The leaders of Mecca could not agree on which clan should have the honor of setting the Black Stone back in its place. They agreed to wait for the next man to come through the gate and ask him to choose. That man was the 35-year-old Muhammad, five years before his first revelation. He asked for a cloth and put the Black Stone in its center. The clan leaders held the corners of the cloth and together carried the Black Stone to the right spot; then Muhammad set the stone in place, satisfying all who were present.
Muhammad and the Black Stone
An illustration from c. 1315 depicting Muhammad's role in re-setting the Black Stone in 605 CE.
Occasionally he would retreat to a cave in the mountains for several nights of seclusion and prayer; it is reported that it was at this spot that he was visited by Gabriel and received his first revelation from God.