Uthman was born into the Umayyad clan of Mecca, a powerful family of the Quraish tribe. He was a companion of Muhammad who assumed the role of leader (caliph) of the Muslim Empire at the age of 70 following Umar ibn al-Khattab. Under his leadership, the empire expanded into Fars in 650 (present-day Iran), some areas of Khorasan (present-day Afghanistan)in 651 and the conquest of Armenia was begun in the 640’s.
Uthman was born in Ta’if, which is situated on a hill, and the presumption is that he was born during the summer months, since wealthy Meccans usually spent the hot summers in the cooler climate of Ta’if. He was born into the wealthy Umayyad (Banu Umayya) clan of the Quraysh tribe of Mecca, seven years after Muhammad.
Uthman’s father, Affan, died young while travelling abroad but left a large inheritance to `Uthman. `Uthman followed the same profession as his father, and his business flourished, making him one of the richest men among the Qurayshi tribe.
Uthman was an early convert to Islam and is said to have spent a great amount of his wealth on charity. On returning from a business trip to Syria in 611, `Uthman found out that Muhammad had declared his mission. After a discussion with his friend Abu Bakr
Uthman decided to convert to Islam, and Abu Bakr took him to Muhammad to whom he declared his faith. `Uthman thus became the fourth male to convert to Islam, after Ali, Zayd and Abu Bakr.
His conversion to Islam angered his clan, the Banu Ummayyah, who strongly opposed Muhammad’s teachings.[4] The only two people who supported `Uthman’s decision were Saadi,
one of his maternal aunts, and Umm Kulthum, who was his stepsister and who had also converted to Islam. Because of his conversion to Islam, Uthman’s wives deserted him, and he subsequently divorced them. Muhammad then asked `Uthman to marry his daughter Ruqayyah bint Muhammad