Title: Taʺrikhi Islom dar aḣdi khulafoi roshidin Abubakr (R) va Umar (R)
Subjects: Caliphs, Biography, History, Islam
Places: Islamic Empire
People: ʻUmar ibn al-Khaṭṭāb Caliph (-644), Abū Bakr Caliph (-634)
Time periods: 622-661