Potsdam Day

Reichskanzler Adolf Hitler and Reichspräsident Paul von Hindenburg on Potsdam Day
Cover of the special edition Der Tag von Potsdam in the weekly newspaper Die Woche

Potsdam Day, also known as the Tag von Potsdam or Potsdam Celebration, was a ceremony for the re-opening of the Reichstag following the Reichstag fire, held on 21 March 1933, shortly after that month's German federal election.