The so-called "Weimar Republic" contains the period between the proclamation of the first parliamentary democracy in Germany (1918.11.9) and the appointment of Adolf Hitler as chancellor of the empire (1933.1.30).
President of the Empire
1919 to 1925 Friedrich Ebert
1925 to 1934 Paul von Hindenburg
Currency reform 1923, November 15th
1.000.000.000.000 Mark = 1 Rentenmark
New Currency: 100 Rentenpfennig = 1 Rentenmark
Currency conversion 1924, August 30th
1 Rentenmark = 1 Reichsmark
New Currency: 100 Reichspfennig = 1 Reichsmark