Given the years that each kingdom existed, can you name all kingdoms and empires throughout history that have had their capital within Europe?
Only realms with a title of kingdom or empire (and equivalent titles such as emirate, tsardom, and khaganate) are counted. Lesser titles, such as grand duchies, principalities, and petty kingdoms are not included.
Kings subject to an emperor (such as within the Holy Roman Empire) are not counted.
Most historians prefer the term "Early Middle Ages", but the Dark Ages were very real - at least in Europe. Can you guess these notable facts from the history of the years 476–1000 AD?