When did Jean-Francois Champollion first translate Egyptian hieroglyphs?

Jean-François Champollion first successfully translated Egyptian hieroglyphs in 1822. His groundbreaking work built upon the earlier discoveries related to the Rosetta Stone, which contained inscriptions in Greek, Demotic, and hieroglyphics. Champollion's insights revealed the phonetic nature of hieroglyphs, marking a significant milestone in the field of Egyptology. His achievements laid the foundation for further studies of ancient Egyptian writing and culture.