Sources: Ministerium des Innern für Sport und Infrastruktur (Mainz) and Germany bank holidays and public holidays (qppstudio.net). The spokesperson (Pressesprecher des Innenministeriums) of Germany's state of Rheinland-Pfalz, David Freichel, has announced that chances were good (Die Chancen dafür stehen nicht schlecht) of Germany's state of Rheinland-Pfalz also declaring October 31, 2017, as a one-off public holiday (gesetzlichen Feiertag) to commemorate the 500th anniversary of Martin Luther posting his ninety-five theses on the door of the Castle Church of Wittenberg. [full story]