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684

Centuries: 6th century - 7th century - 8th century

Decades: 630s 640s 650s 660s 670s - 680s - 690s 700s 710s 720s 730s

Years: 679 680 681 682 683 - 684 - 685 686 687 688 689


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Little Ice Age

... two likely suspects: decreased sunspot activity and increased volcanic activity. During the period 1645-1715, right in the middle of the Little Ice Age, solar activity ...