In Germany a different territorium reformed its old calendar at a different time, so that both old and new calendar dates were written side by side or the name of a city was added to a date, and such customs remained for some time.
ドイツでは改暦の時期が領邦によりまちまちだったため、スラッシュ（/）で新旧の日付を併記したり日付に都市名を添えたりする習慣が続いた。