ArticleslgStudy

chemistry

Stephanus of Alexandria

Stephanus of Alexandria is a chemistry 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 Stephanus of Alexandria rather than just read about it. In short: Stephanus of Alexandria (Greek: Στέφανος Αλεξανδρεύς; fl. c. 580 – c. 640) was a Byzantine philosopher and teacher who, besides philosophy in the Neo-Platonic tradition, also wrote on alchemy, astrology and astronomy. He was one of the last exponents of the Alexandrian academic tradition before the Islamic conquest of Egypt.

Key takeaways

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

Reference excerpt

Stephanus of Alexandria (Greek: Στέφανος Αλεξανδρεύς; fl. c. 580 – c. 640) was a Byzantine philosopher and teacher who, besides philosophy in the Neo-Platonic tradition, also wrote on alchemy, astrology and astronomy. He was one of the last exponents of the Alexandrian academic tradition before the Islamic conquest of Egypt.

Life Stephanus studied at Alexandria, probably under Elias. He is often named alongside Elias and David as among the Christians of the school of Olympiodorus. According to John Moschus, he was teaching and writing commentaries in Alexandria in the 580s, where he was involved in the controversy over Monophysitism, apparently taking positions on both sides. John calls him a "sophist and philosopher". Shortly after the accession of the Emperor Heraclius in 610, Stephanus moved to Constantinople, the capital of the empire, "thereby bridging late Alexandria and the medieval Byzantine world." Whether he was invited by the emperor is not known. He took up a position as "ecumenical professor" (oikoumenikos didaskalos) at the Imperial Academy teaching Plato, Aristotle, the quadrivium, alchemy and astrology. Among his students were the philosopher known as Pseudo-Elias and Tychicus of Trebizond, the teacher of the Armenian polymath Anania Shirakatsi. Many works are attributed to Stephanus, some falsely, most written at Constantinople. Agapius of Hierapolis, writing of the treaty between Heraclius and the Persian king Kavad II in 628, states that Stephanus was "famous among the philosophers at that time". Stephanus died sometime before the death of Heraclius in 641. His identification with Stephanus of Athens has been proposed, but is unlikely.

Works 1. A commentary on Aristotle. Editions:

Commentaria in Aristotelem Graeca ed. consilio et auctoritate Academiae litt. reg. Boruss., Berlin, Bd. XV Ioannes Philoponus de anima, ed. Michael Hayduck, 1897 p. 446-607 (see praef. p. V); Vol. XVIII/3 Stephanus de interpretatione, ed. M. Hayduck, 1885 (Vol. XXI/2: Stephanus in artem rhetoricam is by a Byzantine Rhetor Stephanos of the 12th century). 2. A commentary on the Isagogue of Porphyry. Editions:

Anton Baumstark, Aristot. b. den Syrern v. 5.-8. Jh., Vol. 1: Syr.-arab. Biographien des Aristot., syr. Kommentare z. Eisag.des Porph., Leipzig 1900, 181-210 (with a translation of the fragments of the commentary of Stephanos). 3. Astronomical and chronological works. Editions:

Explanatio per propria exempla commentarii Theonis in tabulas manuales, Ed. Usener, De Stephano Al. p. 38-54 (= Kl. Schriften. III, 295–319). 4. Alchemical works. Scholars are divided as to whether or not these are authentic works of the same Stephen of Alexandria due to the style of writing. The translator, F. Sherwood Taylor accepts them as his. A compendium of alchemical texts including the poem De Chrysopoeia (On how to make gold) is extant in two manuscripts, Venice Cod. Marcianus 299 and Paris BNF 2327. Editions:

De magna et sacra arte, Ed. Julius Ludwig Ideler in Physici et medici Graeci minores II, Berlin 1842 (Reprinted Hakkert, Amsterdam 1963) p. 199-253. (Ideler used a faulty copy of the Marcianus) F. Sherwood Taylor, The alchemical works of S. of Al., in: Ambix, the Journal of the Society for the study of alchemy and early chemistry 1, London 1937, 116–139; 2, 1938, 38-49 (Taylor compared Ideler with the Marcianus and edited lessons 1-3 only; with English translation and commentary). Maria Papathanassiou, ed., Stephanos von Alexandreia und sein alchemistisches Werk, Athens, 2017. Complete critical edition of the Greek text with extensive study and commentary online here and posted on the author's Academia.edu page. 5. Astrological works.

Opusculum apotelesmaticum, Ed. Usener in De Stephano Al. p. 17-32 (= Kl. Schrr. III, 266–289). 6. A horoscope of Muhammad and a prophecy of the rise of Islam attributed to Stephanus is apocryphal. It must date from after 775, since it mentions the Caliph al-Mahdi.

Notes

References

Further reading Texts:

Julius Ludwig Ideler, Physici et medici Graeci minores II, Berlin 1842 (Reprinted by Hakkert, Amsterdam 1963) p. 199-253. Greek text (only) in full online at Google books here F. Sherwood Taylor, "The Alchemical Works of Stephanos of Alexandria", in "Ambix" (1937). Vol. 1, pp. 116–39 doi:10.1179/amb.1937.1.2.116; Vol 2, pp. 39–49. Greek text and facing English translation of 3 of the 9 lectures of the work. Dictionaries:

Albert Ehrhard, Karl Krumbacher: Geschichte der byzantinischen Litteratur von Justinian bis zum Ende des Oströmischen Reiches, 2nd Ed. (1897). Vol. 2 at google books in full, pp. 480f, 614, 621 *, 625, 633. (Vol.1 here). Adolf Lumpe (1995). "Stephanus of Alexandria". In Bautz, Traugott (ed.). Biographisch-Bibliographisches Kirchenlexikon (BBKL) (in German). Vol. 10. Herzberg: Bautz. cols. 1406–1409. ISBN 3-88309-062-X. Articles and studies:

Hermann Usener, De Stephano Alexandrino Bonn (1880) Alb. Jahn, "Chemica graeca ex codicibus Monacensi 112 et Bernensi 579", Revue de Philologie 15 (1891) 101–115. Short intro to his alchemical works. F. Sherwood Taylor, "The Origins of Greek Alchemy", Ambix, I, May 1937, pp. 30–47. Maria Papathanassiou, (1992), "Stephanos von Alexandreia und sein alchemistisches Werk", Ph.D. Thesis, Humboldt Universität zur Berlin, Berlín. Maria Papathanassiou, (1990–1991) "Stephanus of Alexandria: Pharmaceutical notions and cosmology in his alchemical work", "Ambix", nº 37, pp. 121–133; nº 38, p. 112 [addenda]. R. Werner Soukup, (1992), "Natur, du himmlische! Die alchemistischen Traktate des Stephanos von Alexandria. Eine Studie zur Alchemie des 7. Jahrhunderts", "Mitteilungen der Österreichischen Gesellschaft für Geschichte der Naturwissenschaften 12, 1992, 1-93 Maria Papathanassiou, (1996), "Stephanus of Alexandria: On the structure and date of his alchemical work", in "Medicina nei Secoli 8", 2, pp. 247–266. Wanda Wolska-Conus, "Stéphanos d'Athènes et Stéphanos d'Alexandrie. Essai d'identitification et de biographie," Revue des Études Byzantines 47 (1989), p. 5-89.

Worked examples

Example 1 — a first encounter with Stephanus of Alexandria

Start with the simplest possible case. Write down what Stephanus of Alexandria claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, 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 Stephanus of Alexandria 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 Stephanus of Alexandria 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 Stephanus of Alexandria

In research
Stephanus of Alexandria appears in chemistry 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 Stephanus of Alexandria 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
Stephanus of Alexandria is common in secondary-school and first-year university syllabi. It links to neighbouring topics 7th-century Byzantine scientists, 7th-century Byzantine writers, 7th-century Greek philosophers, so understanding it makes those chapters shorter.
In everyday life
Look for Stephanus of Alexandria 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.
Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Stephanus of Alexandria” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Stephanus of Alexandria in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Stephanus of Alexandria 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 Stephanus of Alexandria out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Stephanus of Alexandria in simple terms?

Stephanus of Alexandria (Greek: Στέφανος Αλεξανδρεύς; fl. c. 580 – c. 640) was a Byzantine philosopher and teacher who, besides philosophy in the Neo-Platonic tradition, also wrote on alchemy, astrology and astronomy. He was one of the last exponents of the Alexandrian academic tradition before the…

Why does Stephanus of Alexandria matter?

Because it connects several chemistry 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 Stephanus of Alexandria?

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 Stephanus of Alexandria.

Tags

  • 7th-century Byzantine scientists
  • 7th-century Byzantine writers
  • 7th-century Greek philosophers
  • 7th-century astronomers
  • 7th-century educators
  • 7th-century mathematicians
  • 7th-century philosophers
  • Byzantine astronomers
  • Christian Neoplatonists
  • Greek-language commentators on Aristotle
  • Greek alchemists
  • Medieval alchemists

Keep exploring