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| YEAR | DATE | EVENT | PRESIDENT | PRIME MINISTER |
| 1960 | 11 august | Republic | Francois N'Garta Tomballaye | |
| 1975 | 13 april | gen. Noël Milarew Odingar | ||
| 1975 | 15 april | gen. Félix Malloum | gen. Félix Malloum | |
| 1978 | 29 august | Hissene Habre' | Hissene Habre' | |
| 1979 | 23 march | Goukouni Oueddei (I) | - | |
| 1979 | 29 april | Lol Mohamed Shawa | ||
| 1979 | 3 september | Goukouni Oueddei (II) | ||
| 1982 | 19 may | Djingar Dono Ngerdoum | ||
| 1982 | 2 june | - | ||
| 1982 | 7 june | Hissen Habré | ||
| 1990 | 1 december | Jean Alingue Bawoyeu | ||
| 1990 | 2 december | Idriss Déby | ||
| 1991 | 4 march | Jean Alingue Bawoyeu | ||
| 1992 | 20 may | Joseph Yodoyman | ||
| 1993 | 7 april | Fidèle Moungar | ||
| 1993 | 6 november | Delwa Kassire Koumakoye (I) | ||
| 1995 | 8 april | Koibla Djimasta | ||
| 1997 | 17 may | Nassour Guelendouksia Ouaido | ||
| 1999 | 13 december | Nagoum Yamassoum | ||
| 2002 | 12 june | Haroun Kabadi | ||
| 2003 | 25 june | Moussa Faki | ||
| 2005 | 3 february | Pascal Yoadimnadji | ||
| 2007 | 23 february | Adoum Younousmi | ||
| 2007 | 4 march | Delwa Kassire Koumakoye (II) | ||
| 2008 | 16 april | Youssouf Saleh Abbas | ||
| 2010 | 5 march | Emmanuel Nadingar | ||
| 2013 | 21 january | Djimrangar Dadnadji | ||
| 2013 | 25 november | Kalzeubé Pahimi Deubet | ||
| 2016 | 15 february | Albert Pahimi Padacké | ||
| 2021 | 19 april | gen. Mahamat Idriss Deby | ||
| 2022 | 13 october | Saleh Kebzabo | ||
| 2024 | 1 january | Succès Masra | ||
| 2024 | 24 may | Allamaye Halina |