Uppsala

City · c. 1402 CE · in Europe

Capital of Kalmar Union (1402–1436).

Roskilde (c. 1402 CE): Capital of Kalmar Union (1402–1443).
Belgrade (c. 1402 CE): Capital of Serbian Despots (1402–1421), Kingdom of Serbia (1882–1884), Yugoslavia (1919–1945), and 2 more.
Jambi (1401 CE): Capital of Sultanate of Jambi (1670–1904).
Shuntian Fu (1403–1914 CE): Capital of Ming Dynasty (1421–1644), Qing Dynasty (1645–1911).
Diyarbakir (c. 1407 CE): Capital of Aq Qoyunlu (1407–1468).
Malacca (1396 CE): Capital of Sultanate of Malacca (1459–1511).
Iasi (1408 CE): Capital of Principality of Moldavia (1564–1858), United Principalities of Moldavia and Wallachia (1859–1862).
Cirebon (1389 CE): Capital of Sultanate of Cirebon (1482–1676).
Suceava (1388 CE): Capital of Principality of Moldavia (1388–1564).
Bidar (c. 1425 CE): Capital of Bahmani Sultanate (1425–1491), Bidar Sultanate (1527–1618).

Around the same time and place

Printing press (c. 1440 CE): Gutenberg's press with movable metal type made mass production of books possible, transforming the spread of knowledge in Europe.
Hanseatic League (1356 CE): Confederation of merchant guilds and market towns that dominated Baltic and North Sea trade; its first general diet met in Lübeck in 1356.
Hanseatic trade route (1356–1669 CE): The Hanseatic League of north German merchant towns, led by Lübeck, dominated Baltic and North Sea trade from London and Bruges to Novgorod, exchanging furs, wax, grain, fish and timber for cloth and salt.
Johannes Gutenberg (c. 1400 CE – 1468 CE): German goldsmith from Mainz who introduced printing with movable metal type to Europe.
Trier (16 BCE – 1618 CE): Capital of Electorate of Trier (1333–1618).
Geoffrey Chaucer (c. 1343 CE – 1400 CE): English poet, author of The Canterbury Tales, often called the father of English literature.
Lutherstadt Wittenberg (c. 1363 CE): Capital of Electorate of Saxony (1363–1547).
Jan Hus (c. 1370 CE – 1415 CE): Czech priest and reformer whose execution at Constance sparked the Hussite movement, a forerunner of the Protestant Reformation.