Portal:Germany/Anniversaries/May/May 29
- 1794 – Birth of astronomer Johann Heinrich von Mädler
- 1880 – Birth of historian Oswald Spengler, best known for The Decline of the West
- 1933 – Birth of conductor Helmuth Rilling
- 1934 – Synod of the Confessing Church in Barmen starts, leading to the Barmen declaration
- 1994 – Death of East German leader Erich Honecker