Title: Al-ḵẖulafá ar-ráshidún, or, The four rightly-guided ḵẖalífas
Subjects: History
Places: Islamic Empire
People: Abu 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