Anthony Kaldellis

1. Key Themes

The Byzantine Empire Is a Fiction — The Roman State Lasted 2,200 Years Unbroken

The label "Byzantine Empire" was invented by later Western historians for political reasons. The Eastern Roman Empire called itself Roman, its citizens called themselves Romans, and its legal and political continuity was unbroken from antiquity through 1453 AD. This is not a fringe view — it is what all primary sources say, and the scholarly consensus is now shifting.

"All of our sources are very clear about this. And we've known about this. We've always known about it. It's almost a form of cognitive dissonance, right? It's like when you know something is the case, but you carry on as if it's not." — Anthony Kaldellis 00:09:21

"There are a number of reasons why Western Europeans wanted to think that the Eastern Empire is something different. And those reasons have created these models where they called it Empire of the Greeks for a thousand years, then they switched to Byzantine Empire for very political reasons. Now that's collapsing." — Anthony Kaldellis 00:10:14

Taxation Is the True Spine of Imperial Civilization

Every major reform — Diocletian's restructuring, the Edict of Caracalla, Constantine's Senate recruitment for Constantinople — ultimately comes back to creating a stable, universal, enforceable tax base. If you want to understand why the empire survived, follow the taxes.

"If you asked me to put my finger on one factor, it would be that." — Anthony Kaldellis 00:16:18

"Up until then, Italy was exempt from taxes. Italy was the land of the conquerors. The conquerors don't pay taxes to themselves... Diocletian, Galerius — these guys are from Illyria. They're from the Balkans. Like, why is Italy tax-free exactly? You don't know. It's a very, very wealthy, prosperous part of the world. And so, no, they tax Italy." — Anthony Kaldellis 00:15:00

The Perpetual Referendum: Emperors Were Never Truly Absolute

Despite having no formal elections, the Roman system created what Kaldellis calls a "perpetual referendum." Emperors appeared publicly, crowds cheered or went silent, and 46% of Constantinople's emperors were overthrown by violence. The constant threat of civil war was the primary mechanism keeping rulers accountable.

"Something like 46% of the emperors of Constantinople are overthrown through violence. 46%. That's almost half. Right? So that's a huge number. Which means that every emperor is vulnerable and insecure. And they know it." — Anthony Kaldellis 00:44:10

"In Constantinople, we don't have those kinds of institutions. We have instead an ongoing referendum. We just call it a perpetual referendum... the emperors are conducting opinion polls in a sense because they appear in public. Everyone is expected to cheer and chant acclamations." — Anthony Kaldellis 00:46:48

The Imperial Persona: Consistent Government Branding Across 1,000 Years

The Roman government maintained a remarkably consistent public message across many centuries: rulers are tireless, sleepless, responsive to petitions, working solely for the benefit of subjects. Kaldellis argues this was not merely propaganda — the emperors were generally incentivized to mean it.

"The emperors are projecting this image... tireless effort to work on behalf of subjects, to do so responsibly, to be responsive and accountable... if subjects think that their emperors are like this, right, they're more likely to agree to the consensus of essentially paying taxes." — Anthony Kaldellis 00:36:41

"Justinian, for example, was publicly known as the sleepless emperor... he was a workaholic. That is conceded by even his enemies. All night, he was up just hauling officials in at any old hour to talk about whatever, you know, wars and architecture and laws and religion and theology." — Anthony Kaldellis 00:36:07

The Edict of Caracalla: The Most Radical Inclusion Event in Pre-Modern History

In 212 AD, Emperor Caracalla extended full Roman citizenship to every free inhabitant of the empire — and they meant it. Within a generation, all the most powerful people in the empire were provincials. No other empire in history did this and made it stick.

"Imagine if the British at the time of the peak of the empire bestowed British citizenship on everyone, including in India, and suddenly made positions of power in London available to people from India. Like, including the throne. Like, it's just unthinkable... But not in the Roman Empire." — Anthony Kaldellis 00:59:48

"Not only did they extend citizenship to everybody, but they meant it. This is something that had teeth. In other words, it meant that the rights and opportunities that were available to Roman citizens, say, in the Roman Senate at Rome, are now available to everybody. And within a generation, you have a situation where all of the emperors are provincials." — Anthony Kaldellis 00:58:39

Diocletian's Reset: Turn the Problem Into the Solution

The crisis of the 3rd century (26 emperors murdered in 50 years, hyperinflation, plague, fractured empire) was resolved by Diocletian not by eliminating the desire for power, but by institutionalizing it — the Tetrarchy distributed imperial power to four competent generals simultaneously, while also creating the first universal tax system.

"The way I characterize it sometimes is that he turns the problem into its own solution. In other words, the problem is too many emperors. There want to be emperors. Because there's just more going on... So what he does is, he deputizes some of his colleagues, people he was on very good terms with from the army." — Anthony Kaldellis 00:59:29

History Moves as Process, Not Events — Fixed Dates Are a Historian's Shorthand

One of Kaldellis's core methodological points: the famous dates we cite (476 AD fall of Rome, 395 AD East/West split) are conveniences that obscure long underlying processes. The exceptions are true discrete events with massive downstream consequences — Constantine's conversion being the clearest example.

"There are moments when individuals with a great deal of power make choices that impact everybody else and have long-term consequences downstream. Constantine's conversion to Christianity, for example. Right? Not something that anybody could have or did predict." — Anthony Kaldellis 00:19:15

"476, the fall of the Western Empire. This is the last date. It's actually a very long process that took decades." — Anthony Kaldellis 00:20:05

Constantinople as Strategic Clamp: Geography as Geopolitical Destiny

The founding of Constantinople was not sentimental — it was the single most strategically located city possible for holding together the Eastern empire. It sat exactly between the Danube and Euphrates frontiers, between Black Sea and Mediterranean, between Europe and Asia. Its founding functionally ended the recurring East/West civil war splits.

"If you look at Constantinople, it is kind of halfway between the Danube frontier and the Euphrates frontier... And Constantinople is right between the Danube and the Euphrates. These are the two major frontiers. And so it allows emperors to move between the two." — Anthony Kaldellis 00:26:35

"Constantinople ultimately functions as a kind of clamp that unifies this whole area... The empire never breaks there again... The breaking point now, interestingly, moves to the Adriatic." — Anthony Kaldellis 01:28:31

2. Contrarian Perspectives

Christianity Did Not Triumph Over Rome — Rome Captured Christianity

The standard narrative is that Christianity triumphed over paganism. Kaldellis inverts this: the Roman imperial system absorbed and co-opted Christianity, not the other way around. The church's subsequent history was largely shaped by imperial power structures, not its own autonomous development.

"I would lean more toward the second. In other words, that the religion was co-opted by the imperial system... You cannot say that Christianity either triumphed over it or even tamed it or anything. It actually became part of it. In many ways that determined its history for centuries and, in fact, down to today." — Anthony Kaldellis 01:35:25

Constantine's Conversion Was Personal Belief, Not Political Calculation — and That Makes It More Consequential

Historians have long searched for a rational political reason for Constantine's embrace of Christianity. Kaldellis argues no convincing political explanation exists, which forces the conclusion that it was a genuine personal belief — making it one of the most consequential individual decisions in world history, driven not by structural forces but by one man's faith.

"I have never read a convincing account of what exactly that political gain is. We now know that there are fewer Christians. They were not that influential... Which means that you then fall back on a personal explanation that he did this because he was a believing Christian... historians are very uncomfortable about personal choice." — Anthony Kaldellis 01:37:31

The Roman Republic Was More Imperialistic Than the Roman Empire

The naming convention is backwards. The "Republic" period was when Rome did most of its conquering and expansion. The "Empire" period was largely defensive. The term "empire" refers only to the form of government (having an emperor), not to imperial behavior.

"Here's a bit of a paradox. What we call the Roman Republic was the most imperialistic phase of Roman history. This is when the Romans did most of their conquering. What we call the empire is much less imperialistic in this way. That's much more defensive in its approach... The empire is more a function of — that it has an emperor rather than it is engaged in imperialism." — Anthony Kaldellis 00:40:15

The Crisis of the 3rd Century Barely Touched Ordinary People

Despite 26 emperors being murdered in 50 years, hyperinflation, and plague, the experience of ordinary provincial life may have been relatively undisturbed. The "crisis" was primarily a crisis of imperial legitimacy at the top, not a collapse of daily civilization.

"If you go to Egypt, for example, which is kind of out of the right... what's going on there? How are people living there? And we can see how people are living in Egypt because we have all these papyrus documents from Egypt. And for the most part, they don't seem to be experiencing a crisis." — Anthony Kaldellis 01:06:38

Civil Wars Were a Feature, Not a Bug — They Were the Accountability Mechanism

What looks like catastrophic instability (120 civil wars in 1,000 years in the Eastern Empire) was actually the functional equivalent of elections in a system without formal democratic institutions. The threat of violent overthrow kept emperors responsive to their subjects in the same way elections force modern politicians to be.

"Just take the thousand years that I study. There's something like 120 civil wars. Now, these are usually very swift... They're solely about who has the power. All sides have the same ideology... And so once you have that situation... and you have a winner, that's the emperor." — Anthony Kaldellis 00:43:41

3. Companies Identified

No companies were mentioned for excellence in this episode. The conversation was entirely focused on historical analysis of the Roman and Eastern Roman Empire.

4. People Identified

Historian specializing in the Eastern Roman Empire, professor, author. Mentioned as the guest and subject matter expert throughout. He has written extensively on the Eastern Roman Empire, edited a volume on intellectual history, and hosts the podcast Byzantium and Friends. Credited with reframing the "Byzantine Empire" as continuous Roman history.

"The burden of proof is on those who would assert that what we've been calling the Byzantine Empire is something other than the Roman Empire." — Anthony Kaldellis 00:09:21

Robin Pearson

Host of The History of Byzantium podcast, described by Lex Fridman as excellent. Kaldellis has appeared multiple times as a guest, including a notable episode ranking the top 10 emperors.

"I should mention you being a guest multiple times on the excellent The History of Byzantium podcast hosted by Robin Pearson. I highly recommend people listen to it." — Lex Fridman 01:29:16

Constantine I (Constantine the Great)

First Christian Roman emperor, founder of Constantinople, sole ruler of the Roman Empire from 324 AD. Ranked #1 by Kaldellis among all Eastern Roman emperors for the sheer consequence of his decisions — founding Constantinople and converting to Christianity — regardless of personal morality.

"I couldn't not put him at the top of the list... creating Constantinople and converting to Christianity and setting the empire on a path to conversion. These are major, like world history level decisions. Constantine is in like his own league when it comes to those kinds of decisions." — Anthony Kaldellis 01:32:24

Diocletian

Emperor 284–305 AD. Reformed the Roman state after the crisis of the 3rd century by creating the Tetrarchy, implementing universal taxation including taxing Italy for the first time, conducting a universal census, and building the bureaucratic model that defined the Eastern Roman Empire for centuries.

"What Diocletian does essentially is... he turns the problem into its own solution... He deputizes some of his colleagues, people he was on very good terms with from the army... By having four big guys with four armies, they managed to put out all of those fires or most of them." — Anthony Kaldellis [01:09:29 / 01:20:23]

Marcus Aurelius

Emperor and Stoic philosopher, mentioned by Lex Fridman as a personal favorite. Part of the Pax Romana period (27 BC–180 AD), considered one of the "sexy popular emperors" of the stable early imperial period.

"A lot of the emperors we know of, the sexy popular emperors, come from that period. Marcus Aurelius, who I'm a big fan of, from that period." — Lex Fridman 00:15:06

Hadrian

Emperor of the 2nd century AD, described as cosmopolitan, bilingual, artsy, poetic — and also "a hard ass." Used as the key example to illustrate why the East/West "Roman vs. Byzantine" rupture is intellectually incoherent: Hadrian resembles later "Byzantine" emperors far more than early Republican Romans.

"Why do we assume that someone like Hadrian, right, an emperor from the second century, a very cosmopolitan figure who travels around the empire with his Greek lover and writes poems and has a Greek beard and loves Greek culture... has much to do with someone from the middle republic who's some warrior chasing down cattle from the Samnites?" — Anthony Kaldellis 00:29:12

Aurelian

Emperor who preceded Diocletian. In roughly five years, reconquered the three fractured pieces of the empire during the height of the 3rd-century crisis, demonstrating that Roman political imagination could only conceive of Roman-style governance even in breakaway regions.

"This was not an attempt to break away from the empire... it's an attempt by provincial generals to take the throne and to rule the entire empire... Aurelian, that is someone from the other side, will reunite the empire. But it's always a Roman model." — Anthony Kaldellis 01:08:10

Caracalla (Marcus Aurelius Antoninus)

Emperor who issued the Edict of Caracalla in 212 AD extending full Roman citizenship to all free inhabitants of the empire. Described as one of the most consequential legal decision-makers in Roman history, though his motivations remain debated.

"He issues this edict in 212 called the Constitutio Antoniniana... which basically extended citizenship to everybody... Not only did they extend citizenship to everybody, but they meant it." — Anthony Kaldellis [00:57:21 / 00:58:39]

Justinian

6th-century Eastern Roman emperor. Used as the primary example of the "sleepless emperor" persona — a workaholic acknowledged even by his enemies, who hauled officials in at all hours to discuss war, architecture, law, and theology.

"Justinian, for example, was publicly known as the sleepless emperor... He was a workaholic. That is conceded by even his enemies. All night, he was up just hauling officials in at any old hour to talk about whatever." — Anthony Kaldellis 00:36:07

Ulpian

Roman legal scholar of the early 3rd century AD, cited by Kaldellis as likely one of the key minds behind the legal architecture of the Edict of Caracalla.

"212 is in an age of very important Roman legal scholars, Ulpian, for example, and others... I suspect that there were a few people who were behind it and quite possibly jurists." — Anthony Kaldellis 01:02:23

5. Operating Insights

The Perpetual Referendum as a Real-Time Leadership Accountability System

The Eastern Roman emperors had no elections but maintained real-time sensitivity to public sentiment through systematic public appearances where crowd reactions served as live opinion polls. When the Hippodrome crowd went tepid or booed, emperors immediately investigated and fixed the underlying problem (grain supply, taxes, etc.). The practical lesson: leaders who create formal, recurring, public feedback mechanisms — and actually respond to them — build more durable institutions than those who rely on formal authority alone.

"Emperors are desperate to fix those problems... If you appear in the hippodrome and people are like sullen, or the chanting is a bit tepid, or if they're booing, then you know something's wrong. Right? So you've got to find out what's wrong. It could be something like the grain supply is not working or whatever." — Anthony Kaldellis 00:47:14

The Imperial Persona as Organizational Culture: What You Broadcast Becomes What You Must Deliver

The Roman state broadcast a consistent persona — responsive, accountable, sleepless, working only for subjects' benefit — across centuries through laws read in churches, petitions, public rhetoric. Because this persona was so publicly and consistently stated, emperors were structurally incentivized to actually live up to it or face the consequences. The operating insight: the explicit articulation of a leadership standard, broadcast widely enough and consistently enough, creates accountability that mere private values do not.

"In other words, if subjects think that their emperors are like this, right, they're more likely to agree to the consensus of essentially paying taxes... The ones that did that didn't end well." — Anthony Kaldellis [00:37:10 / 00:50:33]

Diocletian's Move: Institutionalize the Threat Rather Than Suppress It

When faced with constant rebellions from power-hungry generals, Diocletian's solution was not to suppress the ambition but to co-opt it — creating the Tetrarchy so that four powerful men with armies were formally inside the system rather than constantly trying to break in from outside. For operators dealing with internal power struggles or competitive threats: sometimes the right answer is structured inclusion, not elimination.

"He turns the problem into its own solution. In other words, the problem is too many emperors... So what he does is, he deputizes some of his colleagues, people he was on very good terms with from the army." — Anthony Kaldellis 01:09:29

6. Overlooked Insights

Jewish Women Had More Legal Rights Inside the Roman Empire Than Outside It — Roman Law as a Portable Rights Infrastructure

Kaldellis mentions almost in passing that in the 10th–11th century, Jewish women living inside the Eastern Roman Empire strategically chose Roman courts over rabbinical courts because Roman property and inheritance law gave them more rights. This was not a policy designed for Jewish women — it was a side effect of Roman universal law being applied consistently regardless of religion. The deeper insight: a sufficiently robust and consistently enforced legal infrastructure can quietly improve outcomes for minority populations who were never the intended beneficiaries, simply by being neutral and universal. This is a non-obvious argument for rule-of-law universalism as a technology for social equity that requires no explicit advocacy or targeted policy.

"In the 10th, 11th century, there are Jewish women who live in the Eastern Roman Empire who realize that they have more rights in Roman courts than in rabbinical ones. And they take their disputes to the Roman courts... So you end up with a situation where Jewish women have more rights than Jewish women do elsewhere because Roman law is not operative. And there you go. Like, these things matter." — Anthony Kaldellis 00:32:10

Constantine's Religious Branding Was a Deliberate Persona Management Strategy — Not Just Belief

Buried in the Constantine discussion is a brief but striking observation: Constantine had a pattern of adopting a new divine patron every time he needed to shift political alliances or rebrand himself — first Jupiter-Hercules (to fit within Diocletian's system), then Apollo (when breaking away), then Christ (after defeating Licinius). Each shift coincided with a political transition. Kaldellis calls it "branding" explicitly. The overlooked insight is that this represents a sophisticated, recurring use of religious affiliation as a political signaling tool — a technology of power that has almost no modern equivalent in secular democracies but is alive in various forms in contemporary politics and corporate brand positioning. The fact that this pattern is noted and then mostly set aside in the conversation means its full implication — that even genuine personal belief can be simultaneously and consciously deployed as brand strategy — is underexplored.

"He had had religious visions of Apollo before Christ... when he wanted to break away from his other emperors, who used to go for the Jupiter-Hercules model, and he shifted to an Apollo model. This is branding. This is emperors doing branding." — Anthony Kaldellis 01:40:40