Tyler Cowen, Toby Wilkinson on Ptolemaic Egypt and the First Great Commercial Civilization (Ep. 278), May 27, 2026.
Toby Wilkinson is one of the world’s leading Egyptologists, whose books have ranged across the full sweep of pharaonic history. His latest, The Last Dynasty: Ancient Egypt from Alexander the Great to Cleopatra, covers the 300-year Ptolemaic period — stranger and more modern-feeling than the Egypt of the pyramids, built around commerce and cosmopolitanism rather than divine kingship, and home to the greatest concentration of scientific talent the ancient world ever saw.
Tyler and Toby cover how Alexander took over the empire almost without a fight, why Alexandria became the Manhattan of the ancient world, whether the era was as philosophically fertile as it was scientifically, whether your ancient doctor’s visit had positive expected value, what Egypt was actually exporting and selling, whether living standards rose above subsistence or stayed Malthusian, how the ethnic divide between Greek rulers and Egyptian subjects shaped society, what constrained the Ptolemaic Empire from becoming the next Rome, whether Cleopatra has been overhyped, what Julius Caesar was really thinking when he sided with her over her brother, the new frontiers in archeology, whether Herodotus can be trusted, what ancient Egypt knew about Israel and India, when Egyptian jewelry peaked and why, what triggered the sudden emergence of civilization across the ancient world, why a six-year-old Tyler knew King Tut better than Napoleon, and much more.
After the preliminaries, the first of three segments from the whole conversation:
I. On intellectual activity of Alexandria
COWEN: How large was the library in Alexandria and how did they build that out?
WILKINSON: This is interesting because the Ptolemaic kings not only wanted to be wealthy economically, but they wanted to be renowned throughout the ancient world as great scholar leaders. They thought it was important that a new dynasty establish its credentials as a patron of the arts and of learning, not just as the head of a great commercial enterprise.
They invited all the leading scholars from the Greek-speaking world, from right across the Mediterranean to Alexandria, where they provided them with a library, with what was called a museum or a temple of the muses, a place where scholars could think great thoughts and be well looked after. The library was developed over centuries, really, as the greatest repository of learning that the world had ever seen up to this point. It is thought that maybe at its height, it contained half a million volumes, half a million manuscripts, mostly written on papyrus, but representing really the sum total of human knowledge at that time.
COWEN: Euclid and Eratosthenes are connected to this era?
WILKINSON: Almost any big name from ancient science has some connection with Alexandria. Euclid, the mathematician, studied there. Eratosthenes, who quite amazingly calculated the circumference of the earth, he carried out those calculations in Alexandria. There were leaders in the fields of astronomy, of anatomy and medicine, of geography, of philosophy, of literary theory. They were all active in Alexandria under the patronage of the Ptolemaic kings.
COWEN: Am I correct in thinking that the era was quite weak in philosophy in some ways? There’s no great name. Maybe it’s all lost manuscripts. It seems to be a bit like China, infrastructure intensive. They build amazing things. It’s commercial, but they’re not really thinkers.
WILKINSON: I think that would be a misrepresentation. Alexandria under the Ptolemies didn’t produce a Socrates or a Plato. It is true. What its scholars did was to synthesize strands of philosophy from ancient Greek thought, ancient Egyptian thought, Babylonian thought, ancient Hebrew philosophy and religion. It was a melting pot. It maybe didn’t throw up the big name, but it was a very fertile ground for the exchange and the interchange of ideas.
COWEN: Say I try to read Diodorus. There’s a lot of detail, but it’s not to me very interesting. It just seems much worse than Herodotus, who is profound and in a way a step back. Maybe that’s not representative.
WILKINSON: I think there are a lot more scholarly works, both surviving and lost, that were composed in ancient Alexandria that would be more surprising and more revelatory than those that you’ve just mentioned.
COWEN: What was it exactly that was so special about the intellectual, and scientific, and productive environment of Alexandria and environs? Was it that the Egyptians were there, or the mix of Greeks and Egyptians, or something else? What?
WILKINSON: I think there are three factors, really. One is certainly the Egyptian context. I don’t think those intellectual advances that were made in Alexandria could have been made anywhere else. Let’s take anatomy, for example. In the Greek world in general, there was a taboo on cutting up human bodies. Of course, ancient Egypt had a long tradition of mummification, which involved dissecting human corpses. If you were an anatomist and you wanted to make discoveries about how the organs functioned, the only place you could do that at this time was ancient Egypt. The same is true, actually, in many other branches of science. The Egyptian traditions of scholarship and of learning really laid the foundations for Greek thinkers to take them to the next level.
The second aspect was the wonderful infrastructure that was put in place by the Ptolemies to lure scholars to Alexandria. They were paid handsomely. They had access to the world’s best library. They had all of the facilities at their disposal. There was really no better place to be than Alexandria.
The third factor was really the kleptomania of the Ptolemaic rulers. They were not just bibliophiles, but they wanted to acquire a copy, preferably the original, of every book and manuscript circulating in the ancient Greek world. To that end, they indulged in downright thieving. They sent a word, for example, to Athens, which was one of the great centers of scholarship, a rival center of learning, and requested copies of books from Athens’ city library. The copies arrived in Alexandria. They were then seized by the Ptolemaic authorities and kept for Alexandria’s own library. They were only too happy to pay the fine because they had the books. It was a combination of factors that really led Alexandria to being the greatest center for scholars and for scholarship.
II. From the Ptolemaic Empire to Rome
COWEN: Given all the successes, what should I think of as the limiting principle behind rule here? It stretches as far as what we would call Cyprus today, but it never becomes a very large area, right? Now, it doesn’t become the next Roman Empire. Why doesn’t it?
WILKINSON: At its greatest extent, the Ptolemaic Empire includes much of the coast of modern-day Libya, certainly Cyprus, the Nile Valley, parts of present-day Lebanon, and Syria and Turkey, and some islands in the Aegean. It’s not as big as the Roman Empire would later be. What are its constraining factors? Partly, it’s a lack of ambition. Not a lack of ambition, moderate ambition.
The Ptolemies really want to rule Egypt, which is regarded as the jewel in Alexander the Great’s crown. It’s the most prosperous part of his empire. The other territories that they conquer in a ring around Egypt are really only there as a defensive buffer zone to protect Egypt. They have no particular ambition to create a world empire as Alexander the Great did. That was one constraining factor.
They are also not the only players in the ancient world. There are other powerful dynasties of kings in Asia and in the Greek mainland who have territorial designs of their own. It keeps these various powers in equilibrium, and it stops one of them becoming dominant, really, until the Romans upend the whole system. I suppose, yes, those are the two constraining factors, ambition and competition.
COWEN: Do you think the Romans had the ambition in a way Ptolemaic Egypt did not?
WILKINSON: Yes, I do. I think the Romans were motivated by a real desire to conquer. Ancient Roman military leaders were only as good as their last victory on the battlefield. You see that in the later days of the Republic and the beginning of the empire. Whereas in ancient Egyptian tradition, certainly, military success was not the benchmark of a successful reign. It was something that you needed to do in order to protect your own borders. There were other achievements—honoring the gods, building great temples, presiding over a glittering civilization—that were considered equally important.
COWEN: How is it that all this ends, or at least starts to decline? What’s the mechanism?
WILKINSON: It begins with the finances. The Ptolemaic Empire becomes overstretched. It has to invest hugely in its armed forces in order to fend off not just the growing predations of Rome, but actually its closer neighbors as well. That leads to higher taxes. There’s a series of climatic shocks, poor Niles leading to poor harvests. It’s a perfect storm. The economy goes south pretty quickly. The only solution that the Ptolemies can see is to go cap in hand to Roman moneylenders to bail out the Egyptian economy. That then really gives Rome leverage over Egypt.
That all gets bound up in the republican politics of Rome and in the rivalry between Caesar and his rivals, and then ultimately Octavian, who becomes the first emperor, Augustus. Egypt goes from being a great civilization, confident of itself, to being a pawn in other people’s power play. Ultimately, Rome is able to march into Alexandria, overthrow Cleopatra, and seize Egypt for itself. It’s a salutary lesson for our own time that a civilization can appear to the outside world to be magnificent, and wealthy, and successful, but actually the seeds of its own destruction are usually lying there somewhere just waiting for the conditions to germinate. [...]
COWEN: How important a figure is Cleopatra in this whole history? Is it just marketing, and Shakespeare, and Elizabeth Taylor, or was she really at the center of what was happening? Did she matter?