1981-04-27

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: 1981-04-27

(April 27, 1981)
The first personal computer mouse was introduced by Xerox PARC.