1000s (decade)

The 1000s was a decade of the Julian Calendar which began on January 1, 1000, and ended on December 31, 1009.

At the time, Persia was in a period of instability, with various polities seceding from Abbasid rule, among whom the Ghaznavids would emerge as the most powerful.

The Islamic world was reaching the peak of its historical scientific achievements.

Important scholars and scientists who flourished in AD 1000 include Al-Zahrawi (Abcasis), Ibn Yunus (publishes his astronomical treatise Al-Zij al-Hakimi al-Kabir in Cairo in c. 1000), Abu Sahl al-Quhi (Kuhi), Abu-Mahmud Khujandi, Abu Nasr Mansur, Abu al-Wafa' al-Buzjani, Ahmad ibn Fadlan, Ali Ibn Isa, Al-Karaji (al-Karkhi), Ibn al-Haytham (Book of Optics), Avicenna, Averroes, and Al-Biruni.

By this time, the Turkic migration from the Eurasian Steppe had reached Eastern Europe, and most of the Turkic tribes (Khazars, Bulgars, Pechenegs etc.)