List of former national capitals

Columns: Old capital city | Country | Today a part of | From | Until | Change , reason
Uppsala | Sweden | Sweden | 1273 | 1436 | moved to Stockholm | Din Guardi ( Bamburgh Castle ) | Bryneich | United Kingdom | 420 | 547 | conquering of the Kingdom | Chelmsford | Essex | United Kingdom | 1st July 1381 | 6th July 1381 | Briefly moved from London due to riots | Bebbanburgh ( Bamburgh ) | Bernicia | United Kingdom | 547 | 634 | merged with Deira to become Northumbria | Ebrauc ( York ) | Deira | United Kingdom | 5th Century | 866 | merged with Bernicia to become Northumbria | York | Northumbria | United Kingdom | 834 | 866 | fall of the Kingdom

Example questions:
What was the nature of the city that was the former national capital of Norway from 997 to 1217 at its founding ? | What peninsula does the city that was the former national capital of Norway from 1217 to 1299 lie on ? | What temperature scale was invented in the former national city which was the capital of Sweden from 1273 to 1436 ? | What was the name of the former national city which was the capital of Norway from 1905 to 1925 at its founding ? | What is the population of the city that was the former national capital of Ireland from 1642 to 1651 ?

Answers:
trading post | Bergenshalvøyen | Celsius | Ánslo | 26,512