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200th anniversary: In a letter to the Académie des Inscriptions et Belles-Lettres in Paris,...
Tue, September 27, 2022
4 yr ago
In 1822, In a letter to the Académie des Inscriptions et Belles-Lettres in Paris, Jean-François Champollion announced his initial successes in deciphering Egyptian hieroglyphs on the Rosetta Stone (pictured).
Also on Sep 27, 2022
Meskel (Finding of the True Cross)Bonfires (Demera) for the finding of the Cross by Empress Helena; UNESCO intangible heritage. The Coptic Feast of the Cross falls on the same day.4 yr agoEthiopian Orthodox Tewahedo Church, computedDetails →600th anniversary: The Treaty of Melno was signed, establishing the Prussian–Lithuanian borderIn 1422, The Treaty of Melno was signed, establishing the Prussian–Lithuanian border, which afterwards remained unchanged for about 500 years.4 yr agoWikipediaDetails →
Source, method and history
- Source
- Wikipedia
- How we know
- Wikipedia "On this day" selected anniversary, 200 years (1822 to 2022).
- Recurs
- annual
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- Changes
- 2026-09-25: added to 2022-09-27