1582-10-04

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: 1582-10-04

(October 04, 1582)
Pope Gregory XIII instituted the Gregorian calendar, which was adopted by a large number of countries during the next several centuries.
photo source: wikimedia.org