20 De Septembro: Dâta
 | Cél articllo est ècrit en arpetan supradialèctâl / ORB lârge. |  |
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| Tôs los jorns | ||||||
Lo 20 de septembro est lo 263émo jorn de l’an (264émo en câs d'an bissèxtilo) du calendriér grègorien.
Politica et èvènements
- 52 av. J.-C. : Fin de la Batalye d’Alèsia.
Cultura et science
Nèssences
Môrts
- Hèrmengouârda de Savouè, rêna de Borgogna, est môrte avant lo 20 de septembro 1057.
Notes
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