Al Farooq

Omar ibn al-Khattab (Radi'Allaho Anhu), the second of the Rightly Guided Khaliphs of Islam, made an inconceivably large contribution not only to the geographic spread of Islam, but to the establishment of  justice and intellectual freedom as well. 
His reach extended as far as Persia, Egypt, and Anatolia, and he defeated towering empires such as the Sassanids and the Byzantines. 
Such a rapid expansion of the Islamic world would merit acclaim in itself, but Omar (RA) did not stop there; his purpose was not to conquer lands in the name of Islam, he sincerely wanted to establish peace and justice in accordance with Allah's  way. Thus, he began what would be known as the Islamic judicial system, improved the economic system, developed a calendar, and united the Muslims.
This book based on the life of Sayyiduna Umar ibn Al-Khattab has been well researched by the Author, Allamah Shibli Nu'mani, a well known Indian scholar and historian who also wrote a biography on Imam Abu Hanifah.
Translated by Maulana Zafar Ali Khan