Title: Tabakâtü'l-ümem
Subjects: Science, Early works to 1800, History, Ancient Science, Islamic learning and scholarship, Ṭabaqāt al-umam (Andalusī, Ṣāʻid ibn Aḥmad)
Places: Islamic Empire
People: Andalusī, Ṣāʻid ibn Aḥmad (1029-1070)