400th Anniversary of the Gregorian Calendar

West Germany · 1982 · 80 Pfennig

The stamp features a detailed portrait of Pope Gregory XIII, who initiated the Gregorian calendar reform, alongside an astronomical instrument and the symbolic Agnus Dei. The design evokes the style of 16th-century engravings.

This stamp commemorates the 400th anniversary of the Gregorian calendar, introduced by Pope Gregory XIII in 1582 to correct inaccuracies in the Julian calendar. It marks a significant historical reform in global timekeeping.