Fez

City · 789 CE · in Europe

Capital of Idrisids (793–974), Marinid Sultanate (1250–1465), Wattasid dynasty (1472–1554), and 1 more.

Koumbi Saleh (c. 793–1200 CE): Capital of Ghana Empire (793–1200).
Kyoto (Heian-kyo) (794 CE): Emperor Kanmu moved the capital to Heian-kyo, which remained Japan's imperial capital until 1868.
Dali (c. 779 CE): Capital of Nanzhao (779–902), Kingdom of Dali (947–1253).
Tiaret (c. 778 CE): Capital of Rustamid dynasty (778–909).
Prague (800 CE): Capital of Duchy of Bohemia (896–1002), Kingdom of Bohemia (1202–1528), Holy Roman Empire (1346–1611), and 4 more.
Ribe (800 CE): Capital of North Sea Empire (1018–1035).
Yasodharapura (c. 802–1431 CE): Capital of Khmer Empire (802–1431).
Hariharalaya (c. 802–1431 CE): Capital of Khmer Empire (802–1431).
Aachen (c. 768 CE): Capital of Kingdom of the Franks (768–843), Middle Franks (855–899), Holy Roman Empire (962–1346), and 1 more.
Nitra (c. 814 CE): Capital of Principality of Nitra (814–839).

Around the same time and place

Trans-Saharan trade (c. 700–1600 CE): Camel caravans crossed the Sahara between Morocco and the Niger bend, exchanging North African goods and Saharan salt from mines such as Taghaza for West African gold, enriching the empires of Ghana, Mali and Songhai.
Reconquista (718–1492 CE): Centuries-long series of campaigns by Christian kingdoms to take the Iberian Peninsula from Muslim rule, ending with the fall of Granada in 1492.
Córdoba (c. 757 CE): Capital of Emirate of Córdoba (757–929), Caliphate of Córdoba (936–1031).
Great Mosque of Córdoba (785 CE): Mosque begun by Abd al-Rahman I in 785, famous for its forest of double-arched columns; it was converted into a cathedral in 1236.
Jaca (c. 830 CE): Capital of County of Aragon (830–921).
Volubilis (400 BCE – 1710 CE): Capital of Mauretania (212 BCE–42), Idrisids (793–974).
Temsamane (c. 750 CE): Capital of Emirate of Nekor (750–760).
Nekor (c. 760 CE): Capital of Emirate of Nekor (760–1019).