The historical significance of the Rosetta Stone lies in its role in deciphering Egyptian hieroglyphs, which had been a long-standing mystery for scholars. Discovered in 1799 by French soldiers during Napoleon's campaign in Egypt, the stone features the same text inscribed in three scripts: Greek, Demotic, and hieroglyphic. The Greek inscription, which was understood, enabled linguist Jean-François Champollion to unlock the meaning of hieroglyphs in the 1820s. This breakthrough opened the door to understanding ancient Egyptian language, culture, and history, profoundly impacting the field of Egyptology and enhancing global knowledge about one of history's most fascinating civilizations.