Switch to the dark mode that's kinder on your eyes at night time.

Switch to the light mode that's kinder on your eyes at day time.

Switch to the dark mode that's kinder on your eyes at night time.

Switch to the light mode that's kinder on your eyes at day time.

This Day in History: 1970-04-22

(April 22, 1970)
Earth Day, which was started by American politician and conservationist Gaylord Anton Nelson and first observed on this day in 1970 in the United States, helped to spark the environmental movement and swiftly expanded into an international celebration.

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