A devastating volcanic eruption in A.D. 535 leads to the emergence of new nations and religions.
Written records from China, Italy, Palestine and many other countries suggest a huge catastrophe blighted the world in 536AD. But the cause of it has been uncertain.
Was it a comet? An asteroid? A volcano? Archaeologist David Keys reveals the latter is to blame for the Dark Ages of famine and plague that shaped the world order of today.
