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: 1979-03-28

(March 28, 1979)
An automatic valve at the Three Mile Island nuclear power facility outside Harrisburg, Pennsylvania, was accidentally closed at 4:00 a.m., resulting in radioactive leakage.

The History of November In 3 Minutes
The History of November In 3 Minutes
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