Jean-François Champollion, a French scholar, deciphered Egyptian hieroglyphics in 1822. He built on earlier work by the English polymath Thomas Young, but it was Champollion who cracked the full system and revealed that hieroglyphs were not purely symbolic pictures, as scholars had believed for centuries, but a mix of phonetic sounds and idea-based signs.
The Rosetta Stone Made It Possible
The key to the entire decipherment was a slab of dark granodiorite found by French soldiers in July 1799, during Napoleon’s invasion of Egypt. Discovered in the city of Rosetta (modern el-Rashid), the stone carried the same text written in three scripts: Greek, Demotic (a simplified everyday Egyptian script), and hieroglyphics. Because scholars could already read Greek, the stone offered a way to work backward into the two Egyptian scripts.
The text itself wasn’t particularly dramatic. It recorded a decree issued by a council of priests in 196 BCE, celebrating the coronation of Ptolemy V and establishing his royal cult. It described tax reductions for the army and general population, and ordered temples across Egypt to erect statues of the pharaoh. But the content didn’t matter nearly as much as the fact that the same message appeared in a language scholars already understood.
Thomas Young’s Early Breakthrough
The English physician and physicist Thomas Young was the first to make real progress. Working with the Rosetta Stone, he noticed that certain hieroglyphs were enclosed in oval outlines, now called cartouches. Since the Greek portion mentioned the ruler Ptolemy repeatedly, Young reasoned that the six cartouches on the stone must contain that name. He broke the cartouches apart and figured out which symbols had been used phonetically to spell out the individual letters of “Ptolemy.”
This was a genuine breakthrough. Young demonstrated that at least some hieroglyphs represented sounds rather than ideas. But he treated this as an exception, assuming the phonetic principle applied only to foreign names like Ptolemy. He didn’t realize the system ran much deeper.
Champollion’s Full Decipherment
Champollion picked up where Young left off and went far further. He improved Young’s readings of Greek and Roman royal names by assigning one sound to each sign, reading them alphabetically. Working with just the names Ptolemy and Cleopatra, he was able to identify consonants and vowels for the letters a, ai, e, k, l, m, o, p, r, s, and t. That gave him enough of an alphabet to start testing other words.
Then came a critical insight. Champollion counted 1,419 hieroglyphic signs on the Rosetta Stone but only 486 words in the Greek text. If each hieroglyph stood for a whole idea or word, as most scholars assumed, there should have been roughly the same number. The mismatch told him something fundamental: hieroglyphs couldn’t be purely ideographic. They had to represent a hybrid system combining sound-based and meaning-based signs.
He tested this by examining the Demotic signs spelling “Alexandria” on the stone. He found that part of the sequence was phonetic, spelling out sounds, while another sign acted as a category marker indicating the word was a place name. Champollion had discovered what Egyptologists now call “determinatives,” qualifying signs that tell the reader what kind of word they’re looking at (a person, a place, an action) without being pronounced. This was the piece Young had missed. Sign sequences could contain both phonetic and non-phonetic elements working together, which explained why there were always more hieroglyphic signs than Greek words on any bilingual text.
On September 27, 1822, Champollion presented his findings in a public reading before the Académie des Inscriptions et Belles-Lettres in Paris. His letter, addressed to the academy’s secretary M. Dacier, laid out a hieroglyphic and Demotic alphabet and proposed phonetic readings for dozens of royal titles and names. That date is widely considered the birth of Egyptology as a discipline.
Why It Took So Long
By the time the Rosetta Stone was found, no one had been able to read hieroglyphs for well over a thousand years. The last known hieroglyphic inscription dates to the late fourth century CE, and knowledge of the script died out as Egyptian temple culture faded under Roman rule.
The main obstacle wasn’t a lack of interest but a deeply entrenched wrong assumption. For centuries, European scholars relied on a text called the Hieroglyphika, attributed to a writer named Horapollo, which treated hieroglyphs as purely symbolic. A goose meant “son,” a hare meant “open,” and so on. Each sign supposedly encoded a philosophical idea rather than a sound. The influential 17th-century scholar Athanasius Kircher tried to connect hieroglyphs to the Coptic language (a correct instinct, since Coptic descended from ancient Egyptian), but he still believed hieroglyphs lacked any phonetic component. He produced elaborate allegorical translations that were almost entirely wrong.
This symbolic assumption locked scholars into a dead end for generations. It took the Rosetta Stone’s bilingual text, plus Champollion’s willingness to abandon the old framework, to reveal that ancient Egyptians had been writing with sounds all along.
How Hieroglyphs Actually Work
The system Champollion uncovered uses two basic types of signs. Some represent sounds, functioning much like letters or syllables. Others represent ideas, working more like miniature pictures of the thing they describe. Many signs can do either job depending on context. A drawing of a human head, for example, can represent the sound “tp” in one word and the literal concept of a head in another.
Determinatives sit at the end of words and aren’t pronounced. They act as silent guides, telling the reader whether the preceding sounds refer to a person, an animal, an action, or an abstract concept. This layered system, combining phonetic spelling with visual category markers, is what made hieroglyphs so resistant to decipherment. Scholars looking for a single unifying principle (all sounds or all symbols) couldn’t find one because the script used both simultaneously.