[SunkenCiv]

Image Credit : Timon Kipfer, University of Basel

[Pollard]

Droughts caused by their own creating of deserts via "slothenly systems of agriculture"?

China's trying to fix a sizeable portion of their country that they turned into a desert.

[jimmygrace]

Created by famine, spread by war and plague... the religion of peace.

[Track9]

Proving one again that variable weather conditions brings out the hysterical nut cases.

[nwrep]

Technically the sixth century is medieval, not ancient.

[exPBRrat]

...more evidence of academia prostituting itself before the altar of climate change.

[BeauBo]

Also, the plague of Justinian (541–549 AD) was the first major outbreak of the first plague pandemic (the Black Death, caused by the bacterium Yersinia pestis), collapsed the economies of the neighboring Sasanian (Persian) Empire and the Byzantine (Eastern Roman) Empire and especially its capital, Constantinople.

As well as the power vacuum in the neighboring areas, Arabia experienced a gold rush around that time, that empowered their elite to rise to prominence within the weakened former Persian Empire.