Rosetta Stone found in 1799, wasn’t used to decipher hieroglyphs for many years Posted by | Sep 18, 2024 | Red Pill NOWlej | 0 | The Rosetta Stone played a vital role in researchers deciphering hieroglyphics. It was found in 1799, but wasn’t fully deciphered until many years later. Read More in FOX News. Read More in Red Pill NOWlej.