In the years 535 and 536, several remarkable aberrations in world climate took place. They were the most severe and protracted short-term episodes of cooling in the Northern Hemisphere in the last 2 Millennia.
Including bizarrely low-temperatures, with snow fall during the summer months in some locations; widespread crop-failures and famine; greatly decreased levels of sunlight; and also causing geopolitical problems.
While it’s currently believed that the event was caused by an extensive atmospheric dust veil formed either, due to a large volcanic eruption in the tropics, or the disintegration of a large amount of space-debris in the upper atmosphere, it is still unclear.Evidence does point towards the volcanic explanation though — owing to the presence of substantial sulfate deposits in glaciers around the world corresponding to the years in question.
There is some documented evidence from the time.
The Gaelic Irish Annals record the following:
“A failure of bread…
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