Title: K̲h̲ulāfāʼu al-R̲āśidīn
Subjects: Biography, Caliphs, History, Imams (Shiites)
Places: Islamic Empire
People: Abū Bakr Caliph (d. 634), ʻAlī ibn Abī Ṭālib Caliph (600 (ca.)-661), ʻUmar ibn al-Khaṭṭāb Caliph (d. 644), ʻUthmān ibn ʻAffān Caliph (d. 656)
Time periods: 622-661