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Rosetta Stone

Rosetta Stone is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Rosetta Stone rather than just read about it. In short: The Rosetta Stone is a stele of granodiorite inscribed with three versions of a decree issued in 196 BC during the Ptolemaic dynasty of Egypt, on behalf of King Ptolemy V Epiphanes. The top and middle texts are in Ancient Egyptian using hieroglyphic and Demotic scripts, respectively, while the bottom is in Ancient Greek.

Rosetta Stone — main illustration
Rosetta Stone — illustration

Key takeaways

  • Rosetta Stone belongs to engineering; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Rosetta Stone to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Rosetta Stone from memory before moving on to harder problems.

Reference excerpt

The Rosetta Stone is a stele of granodiorite inscribed with three versions of a decree issued in 196 BC during the Ptolemaic dynasty of Egypt, on behalf of King Ptolemy V Epiphanes. The top and middle texts are in Ancient Egyptian using hieroglyphic and Demotic scripts, respectively, while the bottom is in Ancient Greek. The decree has only minor differences across the three versions, making the Rosetta Stone key to deciphering the Egyptian scripts. The stone was carved during the Hellenistic period and is believed to have originally been displayed within a temple, possibly at Sais. It was probably moved in late antiquity or during the Mamluk period, and was eventually used as building material in the construction of Fort Julien near the town of Rashid (Rosetta) in the Nile Delta. It was found there in July 1799 by French army officer Pierre-François Bouchard during France's invasion of Egypt. It was the first Ancient Egyptian bilingual text recovered in modern times, and it aroused widespread public interest with its potential to decipher this previously untranslated hieroglyphic script. Lithographic copies and plaster casts soon began circulating among European museums and scholars. When the British defeated the French, they took the stone to London under the terms of the Capitulation of Alexandria in 1801. Since 1802, it has been on public display at the British Museum almost continuously and it is the most visited object there. Study of the decree was already underway when the first complete translation of the Greek text was published in 1803. Jean-François Champollion announced the transliteration of the Egyptian scripts in Paris in 1822; it took longer still before scholars were able to read Ancient Egyptian inscriptions and literature confidently. Major advances in the decoding were recognition that the stone offered three versions of the same text (1799); that the Demotic text used phonetic characters to spell foreign names (1802); that the hieroglyphic text did so as well, and had pervasive similarities to the Demotic (1814); and that phonetic characters were also used to spell native Egyptian words (1822–1824). Three other fragmentary copies of the same decree were discovered later, and several similar Egyptian bilingual or trilingual inscriptions are now known, including three slightly earlier Ptolemaic decrees: the Decree of Alexandria in 243 BC, the Decree of Canopus in 238 BC, and the Memphis decree of Ptolemy IV, c. 218 BC. Though the Rosetta Stone is now known not to be unique, it was the essential key to the modern understanding of ancient Egyptian literature and civilisation. The term Rosetta Stone is now used in a general sense to refer to the essential clue to a new field of knowledge.

Description The Rosetta Stone is listed as "a stone of black granodiorite, bearing three inscriptions ... found at Rosetta" in a contemporary catalogue of the artefacts discovered by the French expedition and surrendered to British troops in 1801. At some period after its arrival in London, the inscriptions were coloured in white chalk to make them more legible, and the remaining surface was covered with a layer of carnauba wax designed to protect it from visitors' fingers. This gave a dark colour to the stone that led to its mistaken identification as black basalt. These additions were removed when the stone was cleaned in 1999, revealing the original dark grey tint of the rock, the sparkle of its crystalline structure, and a pink vein running across the top left corner. Comparisons with the Klemm collection of Egyptian rock samples showed a close resemblance to rock from a small granodiorite quarry at Gebel Tingar on the west bank of the Nile, west of Elephantine in the region of Aswan; the pink vein is typical of granodiorite from this region. The Rosetta Stone is 112.3 cm (3 ft 8 in) high at its highest point, 75.7 cm (2 ft 5.8 in) wide, and 28.4 cm (11 in) thick. It weighs approximately 760 kilograms (1,680 lb). It bears three inscriptions: the top register in Ancient Egyptian hieroglyphs, the second in the Egyptian Demotic script, and the third in Ancient Greek. The hieroglyphic text is Middle Egyptian, a form of the Egyptian language that had been obsolete for centuries at the time the stone was inscribed, and specifically "neo-Middle Egyptian", a deliberately archaic imitation of the original Middle Egyptian language that was used in formal religious texts. The Demotic text more closely represents the stage of Egyptian that was spoken in Ptolemaic times. The front surface is polished and the inscriptions lightly incised on it; the sides of the stone are smoothed, but the back is only roughly worked, presumably because it would have not been visible when the stele was erected.

Original stele

The Rosetta Stone is a fragment of a larger stele. No additional fragments were found in later searches of the Rosetta site. Due to its damaged condition, none of the three texts is complete. The top register, written in Egyptian hieroglyphs, has suffered the most damage. Only the last 14 lines of the hieroglyphic text remain visible; all are broken on the right side, and 12 of them are also damaged on the left. Below it, the middle register of demotic text has survived best; it has 32 lines, of which the first 14 are slightly damaged on the right side. The bottom register of Greek text contains 54 lines, of which the first 27 survive in full; the rest are increasingly fragmentary due to a diagonal break at the bottom right of the stone.

Memphis decree and its context

… excerpt ends here. Continue reading the full article.

Illustrations

Rosetta Stone illustration
Rosetta Stone: One possible reconstruction of the original stele
One possible reconstruction of the original stele
Rosetta Stone: Another fragmentary example of a "donation stele", in which the Old Kingdom pharaoh Pepi II grants tax immunity to the priests of the temple of Min
Another fragmentary example of a "donation stele", in which the Old Kingdom pharaoh Pepi II grants tax immunity to the priests of the temple of Min
Rosetta Stone: Report of the arrival of the Rosetta Stone in England in The Gentleman's Magazine, 1802
Report of the arrival of the Rosetta Stone in England in The Gentleman's Magazine, 1802
Rosetta Stone: Left and right sides of the Rosetta Stone, with inscriptions: (Left) "Captured in Egypt by the British Army in 1801" (Right) "Presented by King George III".
Left and right sides of the Rosetta Stone, with inscriptions: (Left) "Captured in Egypt by the British Army in 1801" (Right) "Presented by King George III".

Worked examples

Example 1 — a first encounter with Rosetta Stone

Start with the simplest possible case. Write down what Rosetta Stone claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Rosetta Stone before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Rosetta Stone ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Rosetta Stone

In research
Rosetta Stone appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Rosetta Stone in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Rosetta Stone is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1799 archaeological discoveries, 1799 in Egypt, 196 BC, so understanding it makes those chapters shorter.
In everyday life
Look for Rosetta Stone outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Rosetta Stone in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Rosetta Stone means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Rosetta Stone out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Rosetta Stone in simple terms?

The Rosetta Stone is a stele of granodiorite inscribed with three versions of a decree issued in 196 BC during the Ptolemaic dynasty of Egypt, on behalf of King Ptolemy V Epiphanes. The top and middle texts are in Ancient Egyptian using hieroglyphic and Demotic scripts, respectively, while the bott…

Why does Rosetta Stone matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Rosetta Stone?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Rosetta Stone.

Tags

  • 1799 archaeological discoveries
  • 1799 in Egypt
  • 196 BC
  • 2nd-century BC steles
  • Ancient Egyptian language
  • Ancient Egyptian objects in the British Museum
  • Ancient Egyptian stelas
  • Antiquities acquired by Napoleon
  • Archaeological artifacts
  • Buildings and structures in Beheira Governorate
  • Egyptology
  • Externally peer reviewed articles

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