The 1883 eruption of Krakatoa was a natural phenomenon that changed the color of the world's skies, even plunging Europe into darkness. Here's a history of the eruption at that time.
The massive eruption of Mount Krakatoa on August 27, 1883, in the Sunda Strait spewed volcanic material that plunged the world into darkness for 2.5 days and caused a tsunami as high as 40 meters. THE ERUPTION...