Vedeno

City · 940 CE · in Europe

Capital of Caucasian Imamate (1828–1858).

Thingvellir National Park (c. 936 CE): Capital of Icelandic Commonwealth (936–1262).
Isfahan (c. 936 CE): Capital of Ziyarid dynasty (936–979), Great Seljuk Empire (1040–1194).
Arles (c. 936 CE): Capital of Kingdom of Arles (936–1378).
Taiyuan (c. 936 CE): Capital of Later Jin (936–946), Northern Han (960–979).
Hyrcania (c. 936 CE): Capital of Ziyarid dynasty (936–979).
Ray (c. 936 CE): Capital of Ziyarid dynasty (936–979), Great Seljuk Empire (1040–1194).
Algiers (944 CE): Capital of Regency of Algiers (1706–1830), Free French (1940–1943), People's Democratic Republic of Algeria (1963–today).
Nantes (c. 947 CE): Capital of Duchy of Brittany (947–1491).
Rennes (c. 947 CE): Capital of Duchy of Brittany (947–1491).
Kaifeng (c. 951 CE): Capital of Later Zhou (951–960).

Around the same time and place

Abbasid Caliphate (750–1258 CE): The Abbasid dynasty, descended from Muhammad's uncle, took the caliphate from the Umayyads and ruled from Iraq, presiding over the Islamic Golden Age.
Avicenna (c. 980 CE – 1037 CE): A Persian physician and philosopher, author of The Canon of Medicine and The Book of Healing, one of the most influential thinkers of the Islamic Golden Age.
Christianization of Kievan Rus' (988 CE): Vladimir the Great adopted Orthodox Christianity from Byzantium and had the people of Kyiv baptised in the Dnieper.
Palmyra (c. 261–1929 CE): Capital of Palmyrene Empire (261–269).
Varangians to the Greeks (c. 800–1100 CE): Scandinavian traders and warriors travelled from the Baltic up the Neva and Volkhov past Novgorod, portaged to the Dnieper and sailed down past Kiev to the Black Sea and Constantinople.
Samarra (c. 836–892 CE): Capital of Abbasid Caliphate (836–892).
Al-Razi (c. 865 CE – 925 CE): A Persian physician and chemist from Rey who wrote influential medical encyclopedias and gave an early clinical description distinguishing smallpox from measles.
Basil II (958 CE – 1025 CE): Byzantine emperor, called the Bulgar Slayer, who conquered the First Bulgarian Empire and brought Byzantium to its medieval height.