Who Was Alive

Were Ibn al-Haytham and William the Conqueror alive at the same time?

Yes. Ibn al-Haytham and William the Conqueror were alive at the same time, from 1027–1028 to 1039.

Ibn al-Haytham

Arab physicist, mathematician and astronomer

Born c. AD 965 · died 1039

William the Conqueror

King of England from 1066 to 1087, Duke of Normandy from 1035 to 1087

Born 1027–1028 · died 9 September 1087

  1. Ferdowsi
  2. Ibn al-Haytham
  3. Leif Erikson
  4. Al-Biruni
  5. Avicenna
  6. William the Conqueror
  7. Omar Khayyám
  8. Al-Ghazali
Ibn al-Haytham and William the Conqueror in bold, with some of their best-known contemporaries. Drag across to see the age each reached in any year. Faded ends mark uncertain dates.