Portal:Germany/Anniversaries/May/May 20
- 1820 – Execution of radical liberal student Karl Ludwig Sand, the murderer of August von Kotzebue
- 1860 – Birth of chemist Eduard Buchner, winner of the 1907 Nobel Prize in Chemistry
- 1896 – Death of pianist Clara Schumann
- 1921 – Birth of author and playwright Wolfgang Borchert
- 1961 – Death of World War II ace Josef Priller