Ṣāʿid al-Andalusī (Arabic: صاعِدُ الأندلسي), in full Abū al-Qāsim Ṣāʿid ibn Abū al-Walīd Aḥmad ibn Abd al-Raḥmān ibn Muḥammad ibn Ṣāʿid ibn ʿUthmān al-Taghlibi al-Qūrtūbi (صاعِدُ بنُ أحمدَ بن عبد الرحمن بن محمد بن صاعدٍ التَّغْلِبيُّ) (1029 – July 6, 1070 AD; 420 – 6 Shawwal, 462 AH), was an Arab qadi of Toledo in al-Andalus, who wrote on the history of science, philosophy and thought. He was a mathematician and scientist with a special interest in astronomy and compiled a famous biographic encyclopedia of science that quickly became popular in the empire and the Islamic East.
HistoryLayer draws the world as it was in any year from 123,000 BCE to
2026. Move the slider and the borders redraw for that year; the map
carries 23,890 events, 12,790 people, 837 wars and 13,183 cities, each
one readable in place. Signing in is optional and lets you keep what
you find.