Umar bin Khattab
Abu Hafs Umar bin Khattab Adawi Qarshi nicknamed Farooq (born between 586 and 590 in Mecca – died: November 6, 644 in Medina) And is one of the most important figures in the history of Islam.  Umar ibn al-Khattab is one of the ten evangelists, he was one of the scholars and ascetics of the Companions. After the death of Abu Bakr Siddiq, he took over the caliphate on August 23, 634 AH, 22 Jamadi al-Thani, 13 AH.  Justice was found, this justice of Umar bin Khattab became very famous and this became one of the reasons for naming his title Farooq.
Umar ibn al-Khattab is the founder of the Hijri calendar. During his caliphate, Iraq, Egypt, Libya, mainland Syria, Iran, Khorasan, eastern Anatolia, southern Armenia and Sijistan were conquered and joined the Islamic State, covering an area of 2.5 million And spread over thirty (22,51,030) square miles. Jerusalem was conquered for the first time during the reign of Umar ibn al-Khattab, thus bringing the entire territory of the Sassanid Empire and about a third of the Byzantine Empire under the control of the Islamic Empire.  He conquered the entire Sassanid Empire in less than two years, as well as managing his empire and boundaries, taking care of all the needs of his subjects and other matters. Proof of his genius. 
Name and lineage
Umar ibn al-Khattab ibn Nafil ibn ‘Abd al-‘Uzza ibn Riyah ibn’ Abdullah ibn Qarat ibn Zarah ibn ‘Uday ibn Ka’b ibn Luway ibn Fahr ibn Malik The mother’s name was Khantama, the daughter of the famous Arab chief Hisham bin Mughira
His title Farooq, surname Abu Hafs, both title and surname are given to Muhammad (peace be upon him). Your lineage goes back to the ninth generation of the Holy Prophet (sws). In the ninth back of the Prophet (peace and blessings of Allaah be upon him) there are two sons of Kaab, Marah and ‘Adi The Prophet (peace and blessings of Allaah be upon him) is one of the descendants of Marah, while Umar is one of the descendants of ‘Uday. 
He was born in Mecca and was one of the few people who could read and write. He excelled in arithmetic, wrestling, wrestling and appointment.