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| YEAR | DATE | EVENT | HEAD OF STATE | PRIME MINISTER |
| 1815 | 10 may | Greatduchy of Kingdom of Netherland | ||
| 1890 | 23 november | Greatduchy - dinasty Nassau | greatduke Adolphe | Paul Eyschen |
| 1905 | 17 november | greatduke Guillaume IV | ||
| 1912 | 25 february | grateduches Maria Adelaide | ||
| 1914 | 1 august | German Occupation | ||
| 1915 | 12 october | Mathias Mongenast | ||
| 1915 | 5 november | Hubert Loutsch | ||
| 1916 | 22 february | Victor Thorn | ||
| 1917 | 17 june | Léon Kauffmann | ||
| 1918 | 27 september | Émil Reuter | ||
| 1918 | 22 november | Greatduchy - dinasty Nassau | greatdukes Marie-Adélaïde | Émil Reuter |
| 1919 | 14 january | greatdukes Charlotte | ||
| 1925 | 19 march | Peter Prüm | ||
| 1926 | 16 july | Joseph Bech (I) | ||
| 1937 | 6 november | Pierre Dupong | ||
| 1940 | 10 may | German Occupation | ||
| 1942 | 30 august | Union to Germany | ||
| 1945 | 28 january | Greatduchy - dinasty Nassau | greatdukes Charlotte | Pierre Dupong |
| 1953 | 28 december | Joseph Bech (II) | ||
| 1958 | 11 april | Pierre Frieden | ||
| 1959 | 26 february | Pierre Werner (I) | ||
| 1964 | 12 november | dinasty Borbone-Parma | greatduke Jean | |
| 1974 | 15 june | Gaston Thorn | ||
| 1979 | 19 july | Pierre Werner (II) | ||
| 1984 | 20 july | Jacques Santer | ||
| 1995 | 20 january | Jean-Claude Juncker | ||
| 2000 | 7 october | greatduke Henri | ||
| 2013 | 25 october | Xavier Bettel | ||
| 2013 | 9 october | Luc Frieden | ||
| 2025 | 3 october | greatduke Guillaume V |