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The extreme weather events of 535–536 were the most severe and protracted short-term episodes of cooling in the Northern Hemisphere in the last 2,000 years. The event is thought to have been caused by an extensive atmospheric dust veil, possibly resulting from a large volcanic eruption in the tropics, and/or debris from space impacting the Earth. Its effects were widespread, causing unseasonal weather, crop failures, and famines worldwide.〔 ==Documentary evidence== The Byzantine historian Procopius recorded of 536, in his report on the wars with the Vandals, "during this year a most dread portent took place. For the sun gave forth its light without brightness... and it seemed exceedingly like the sun in eclipse, for the beams it shed were not clear."〔, gives this quote as "The Sun gave forth its light without brightness, like the moon during this whole year, and it seemed exceedingly like the Sun in eclipse".〕 The Gaelic Irish Annals〔(Gaelic Irish Annals ) translations〕〔(Documents of Ireland )〕〔(The Annals of the Four Masters )〕 record the following: *"A failure of bread in the year 536 AD" – the Annals of Ulster *"A failure of bread from the years 536–539 AD" – the Annals of Inisfallen Further phenomena reported by a number of independent contemporary sources: *Low temperatures, even snow during the summer (snow reportedly fell in August in China, which caused the harvest there to be delayed) *Crop failures *"A dense, dry fog" in the Middle East, China and Europe〔 *Drought in Peru, which affected the Moche culture〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Extreme weather events of 535–536」の詳細全文を読む スポンサード リンク
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