2019-12-20

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: 2019-12-20

(December 20, 2019)
Since 1947, the United States Space Force has been the first new branch of the US Armed Forces.
photo source: wikimedia.org