Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.Umar. Mecca, Martial Arts, Battle of Uhud, Fatimah, Abu Bakr, Banu Hashim, Ridda Wars, Reforms of Umar''s Era, Financial Institution, Military Conquests of Umar''s Era, Drought, Famine, Zakat, Muhammad, Indian Subcontinent.