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: 2016-04-22

(April 22, 2016)
The Paris Agreement on Climate Change, a major deal aimed at controlling and reducing greenhouse gas concentrations in the atmosphere, was signed by more than 170 countries and went into force in November 2016.

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