What happened the day after October 4 1582?

For the Catholic countries in Europe October 5th, 1582 didn't exist on their calendar. During October 1582, people in some parts of Europe changed their calendars from the Julian calendar to the Gregorian calendar. This was done under the recommendations made by Christopher Clavius, and ordered by Pope Gregory XIII. To stay consistent with the vernal equinox, the days between October 5th, 1582 and October 14th, 1582 were dropped.