Eraclea

City · c. 705 CE · in Europe

Capital of Republic of Venice (705–742).

Dubrovnik (700 CE): Capital of Republic of Ragusa (1385–1806).
Truro (c. 710 CE): Capital of Cornwall (710–946).
Kathmandu (723 CE): Capital of Nepal (2008–today).
Oviedo (c. 724 CE): Capital of Kingdom of Asturias (724–924), Kingdom of Galicia (911–1125).
Cangues d'Onís (c. 724 CE): Capital of Kingdom of Asturias (724–924).
Samartín del Rei Aurelio (c. 724 CE): Capital of Kingdom of Asturias (724–924).
Pravia (c. 724 CE): Capital of Kingdom of Asturias (724–924).
Ohrid (c. 682 CE): Capital of First Bulgarian Empire (682–1017).
Skopje (c. 682 CE): Capital of First Bulgarian Empire (682–1017), Serbian Empire (1352–1371), Former Yugoslav Republic of Macedonia (1992–today).
Veliki Preslav (c. 682 CE): Capital of First Bulgarian Empire (682–1017).

Around the same time and place

Charlemagne (c. 747 CE – 814 CE): King of the Franks who conquered much of Western Europe, was crowned emperor in 800 and promoted a revival of learning, the Carolingian Renaissance.
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.
Battle of Tours (732 CE): Frankish forces under Charles Martel defeated an Umayyad army between Tours and Poitiers, halting Arab expansion into Gaul.
Trier (16 BCE – 1618 CE): Capital of Electorate of Trier (1333–1618).
Bede (c. 673 CE – 735 CE): English monk at Jarrow whose Ecclesiastical History of the English People earned him the title father of English history.
First Bulgarian Empire founded (681 CE): After defeating the Byzantines, Khan Asparukh founded the Bulgarian state south of the Danube, with its capital at Pliska.
Muslim conquest of the Maghreb (647–709 CE): Arab armies conquered Byzantine North Africa and the Berber lands over six decades, taking Carthage in 698 and reaching the Atlantic.
Maria Saal (c. 661 CE): Capital of Carantania (661–749).