history of science Archives - Tales of Times Forgotten

Did the Phoenicians Circumnavigate Africa?

The Phoenicians were an ancient Levantine people. Their original homeland was mostly located in what is now Lebanon and they spoke a Canaanite language closely related to Hebrew. They were known in antiquity for their expert sailors, who conducted extensive maritime trade with many different cultures throughout the Mediterranean world. From the ninth century BCE onwards, Phoenician settlers founded many colonies in the western Mediterranean. The most famous Phoenician colony was the city of Carthage in what is now Tunisia, which later grew into an empire that rivalled the fledgling Roman Republic. The Phoenicians also invented the very first abjad, which is the direct ancestor to both the Greek alphabet and the Latin alphabet that we still use to write the English language today.

One ancient account suggests that a group of Phoenician sailors may have circumnavigated the African continent sometime around 600 BCE—over two thousand years before the Portuguese explorer Vasco de Gama rounded the Cape of Good Hope. The ancient Greek historian and traveler Herodotos of Halikarnassos (lived c. 484 – c. 425 BCE) records in his Histories 4.42 that Pharaoh Necho II of Egypt (ruled 610 – 595 BCE) sponsored a group of Phoenician sailors who managed to successfully complete a clockwise circumnavigation of Africa by sailing south from the Red Sea and returning to Egypt through the Strait of Gibraltar between two and three years later.

The communis opinio among classicists, ancient historians, and online history buffs alike is that, although we cannot be 100% certain, the Phoenician voyage around Africa most likely really took place as Herodotos describes. Some skeptics, however, have raised what I think are serious objections to the story. In this article, I will review the arguments both in favor and against Herodotos’s story and come to a conclusion of what I think really happened.

No, Thales of Miletos Was Not “the First Scientist”

Thales of Miletos (lived c. 625 – c. 545 BCE, with those dates being very approximate) is widely revered today with monikers such as “the first philosopher,” “the first scientist,” or “the first mathematician.” Many people today admire him, believing that he was an astounding, once-in-a-millennium kind of genius akin to Isaac Newton or Albert Einstein who single-handedly invented the idea of science as we know it. There is even a French defense contracting company named after him called the “Thales Group” (presumably because the name “Thales” makes people think of science, innovation, and progress, which are all much-needed positive associations for a company that actually makes deadly weapons that governments use to kill people).

The Thales of the modern imagination, however, is predominantly a myth. Most of the stories that people have heard about him are legends that can’t possibly be true, that are first attested many centuries after his death, or both. Much like Pythagoras of Samos and Hippokrates of Kos, the historical Thales of Miletos is an obscure figure about whom very little is known with any certainty.

How Vaccines Were Really Invented

I am greatly pleased to say that I am finally in the process of being vaccinated for COVID-19, since Indiana University (the university I am currently attending) has a huge stockpile of vaccines reserved for students. I received my first dose of the Pfizer vaccine on 8 April 2021 and I am scheduled to receive my second dose on 29 April. Since lots of people like me are now receiving the vaccine for COVID-19, I decided that now would be a good time to write an article about the history of vaccines.

The story that most people have been told is that Edward Jenner, a white English man, single-handedly invented the very first vaccine—a vaccine for smallpox—in 1796. The reality, though, is much more complicated. Notably, many people are not aware of the fact that Jenner’s vaccine was an improvement on the much older procedure of inoculation, which originally independently developed in at least three different parts of the world (in China, West Africa, and the Ottoman Empire) and only later spread to Europe and the Americas through a process of cultural diffusion.

No, the Black Death Did Not Cause the Renaissance

With the world still mired in the midst of the COVID-19 pandemic, which, as of the time I am writing this, has already killed roughly 1.25 million people worldwide, optimists have written a whole flurry of op-eds trying to put a positive spin on this pandemic. They have tried to insist that the Black Death somehow caused the Renaissance and that COVID-19 may therefore result in a new Renaissance that will carry our world to new and even greater heights than ever before.

This argument, however, is loaded with fallacies and false assumptions. For one thing, there are legitimate reasons for thinking that the Renaissance may not have been such a good thing as it is often made out to be. Furthermore, while the Renaissance did come after the Black Death, but it would be a grave mistake to assume that the Black Death therefore caused it to happen.

Aristotle Was Not Wrong about Everything

The ancient Greek philosopher Aristotle (lived 384 – 322 BCE) is widely portrayed in popular culture as an overconfident buffoon who made assertions based on no evidence whatsoever and who was wrong about nearly everything. It is often claimed that his errors and overconfidence held back the progress of science for two thousand years. This portrayal is wildly inaccurate and is rooted in a centuries-old tradition of hostile writers deliberately misrepresenting Aristotle’s works to make him look as stupid as possible.

It is undoubtedly true that Aristotle made quite a few mistakes, but he was wrong a lot less often than is usually claimed. Furthermore, Aristotle did, in fact, rely on empirical evidence. In fact, of all ancient Greek philosophers, Aristotle is by far one of the most empirical. When Aristotle did make a mistake, it was generally not because he didn’t care about evidence, but rather because the evidence available to him was incomplete or his interpretation of the evidence was faulty.

Finally, the claim that Aristotle held back the progress of science for two thousand years is demonstrably wrong and ridiculous. For one thing, for much of the two thousand years in question, Aristotle wasn’t even generally seen as the most authoritative philosopher in the parts of the world where his works were being regularly studied. Furthermore, even when Aristotle was seen as the most authoritative philosopher, his authority was still open to some degree of question.

Was Giordano Bruno Really a “Martyr for Science”?

There are two main historical figures that are often cited as supposed “martyrs for science.” The first is the Neoplatonic philosopher and mathematician Hypatia of Alexandria, who was murdered in March 415 AD by a mob of Christians who supported Cyril, the bishop of Alexandria. The second is the Italian mystic Giordano Bruno, who was burned alive on 17 February 1600 by the Roman Inquisition.

Hypatia was a real scientist (or at least proto-scientist), but she was murdered for reasons entirely unrelated to her scientific work. As I discuss in this article I published in August 2018, all the surviving contemporary sources indicate that Hypatia was murdered due to her involvement in a bitter political feud between Orestes, the Christian Roman governor of Egypt, and Cyril, the bishop of Alexandria. Hypatia was one of Orestes’s major allies. Her murder was basically a political assassination.

Giordano Bruno, on the other hand, was not a scientist at all and he was executed for reasons entirely unrelated to science. Ironically, by insisting on calling him a “martyr for science,” Bruno’s admirers are kind of shooting themselves in the foot by destroying their own credibility.

Why Was Aristarchos’s Heliocentric Model Dismissed and Ignored?

Many people are astonished to learn that the concept of heliocentrism did not originate with Nicolaus Copernicus, but rather with the ancient Greek astronomer Aristarchos of Samos (lived c. 310 – c. 230 BC), who published a book in around the early third century BC in which he argued that the Earth orbits around the Sun. This book has not survived, but we know about its existence because it is referenced by later authors.

What shocks many people even more than the fact that Aristarchos came up with the idea of heliocentrism in the third century BC is the fact that Aristarchos’s heliocentric model of the universe was almost totally rejected by ancient Greek and Roman scholars and never caught on in antiquity. Many people wonder why it was that the ancient Greeks never took Aristarchos seriously. In order to find out why Aristarchos’s heliocentric model of the universe was rejected, we are going to need to dive deep into the ancient sources.