Kazan

City · 1005 CE · in Europe

Capital of Khanate of Kazan (1440–1551).

Dijon (c. 1003 CE): Capital of Duchy of Burgundy (1003–1477).
Qal'at Bani Hammad (1007–1090 CE): Capital of Hammadid Dynasty (1018–1151).
Wroclaw (1000 CE): Capital of Duchy of Silesia (1139–1304), Duchy of Wroclaw (1169–1201).
Cagliari (c. 1000 CE): Capital of Giudicato of Cagliari (1000–1187).
Buda (c. 1000 CE): Capital of Kingdom of Hungary (1000–1526), Eastern Hungarian Kingdom (1529–1541).
Sant Martí d'Empúries (c. 1000 CE): Capital of County of Ampuria (1000–1078).
Tortosa (c. 1010 CE): Capital of Taifa of Tortosa (1010–1099).
Pisa (c. 1010 CE): Capital of Republic of Pisa (1010–1401).
Genoa (c. 1010 CE): Capital of Republic of Genoa (1010–1795), Ligurian Republic (1797–1805).
Nevers (c. 1010 CE): Capital of County of Nevers (1010–1520).

Around the same time and place

Christianization of Kievan Rus' (988 CE): Vladimir the Great adopted Orthodox Christianity from Byzantium and had the people of Kyiv baptised in the Dnieper.
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.
Vitebsk (974 CE): Capital of Principality of Vitebsk (1111–1187).
Vladimir (990 CE): Capital of Principality of Rostov-Suzdal (1125–1240), Principality of Vladimir-Suzdal (1294–1389).
Suzdal (1024 CE): Capital of Principality of Rostov-Suzdal (1125–1240), Principality of Vladimir-Suzdal (1294–1389).
Bolghar Gord (c. 674–1235 CE): Capital of Volga Bulgaria (674–1235).
Yaroslav the Wise (c. 978 CE – 1054 CE): Grand Prince of Kyiv under whom Kievan Rus' reached its peak; he issued the first law code of the Rus' and built Saint Sophia Cathedral.
Bilär (c. 674–1235 CE): Capital of Volga Bulgaria (674–1235).