The best worked example of Law 45 anywhere in the chapter sits in a marginal column, was written by somebody else, and is never referred to by the argument beside it.
Its subject is a date. By the fourth century, midwinter in the Roman world was the most crowded religious real estate of the year:
Saturnalia, 17–23 December — "the most cheerful festival of the year. All work and commerce stopped… Slaves were temporarily freed, and the houses were decorated with laurel branches. People visited one another, bringing gifts of wax candles and little clay figurines."1
The Jewish Festival of Lights, eight days at the same season. A Germanic solstice festival honouring "the rebirth of the sun" and the fertility gods. And, from the year 274, Mithras, whose birthday the emperor Aurelian had declared a national holiday on 25 December.2
Then: "So it was a clever move when, in the year A.D. 354, the Christian church under Pope Liberius co-opted the birthday of Mithras and declared December 25 to be the birthday of Jesus Christ."2
Before the substance, the provenance, because it is a finding about the book.
This passage is attributed to a named author (Anne-Susanne Rischke), in a named newspaper (Neue Zürcher Zeitung), on an exact date (25 December 1983).3 It carries regnal dates for Constantine, Aurelian and Liberius.
The body of Law 45, over 133 lines, names not one historian for Cromwell, Mao, Wang Mang, the Roman republic, Cosimo de' Medici, Darwin, Salk, Planck, Galileo or Napoleon.
⚠ This is the sixth consecutive law in which the marginal column carries the named, dated, attributable sources while the argument carries none. Law 45 is the pattern's cleanest instance — and here the margin does not merely out-source the body, it out-argues it, supplying a case that demonstrates the law more completely than any of the chapter's own.
The sentence that makes this the chapter's strongest case is easy to skim, and it establishes the sequence:
"Even after the Emperor Constantine declared Christianity to be Rome's official imperial religion, the evocation of light and fertility as an important component of pre-Christian midwinter celebrations could not be entirely suppressed."2
So the order is: state power first, absorption second.
Christianity became the official religion of the empire. It had the emperor, the apparatus, the legal standing — every advantage a reformer could want. And the midwinter observance survived it, in some form, for decades.
The co-option in 354 is therefore not a first choice. It is what an institution with maximum coercive advantage did after discovering that the advantage was insufficient.
That is a far stronger demonstration of Law 45 than anything in the chapter's body, because it removes the obvious objection. Cromwell might have succeeded with more force; Mao's peasants might have been compelled. Here the force was already available and already applied, and the practice still had to be absorbed rather than removed.
The structural detail worth extracting is one the marginal reports without emphasis.
Aurelian's move in 274 — establishing a sun-god's birthday on 25 December as a national holiday — was itself an act of the same kind. The solstice observance predated him by an unknown span; the Germanic festivals, the Saturnalia and the Festival of Lights were all already there. He did not invent a date. He attached an official cult to a season that was already being kept.
Eighty years later the church attached a different figure to the same date.
So the Christian co-option is a co-option of a co-option, and the layer beneath Aurelian is probably not the bottom either.
That has a specific consequence for how the technique should be understood. The chapter presents borrowing from the past as a move an operator makes against an original — you find the venerable thing and attach to it. The Mithras case suggests the venerable thing is frequently already someone else's attachment, and that the accumulated authority of a date, a festival or a form is the residue of every prior operator who attached to it.
⚠ This is the same two-layer structure the corpus recorded at Wang Mang, who inserted passages into Confucian texts that "may not have been genuine" to begin with. Two independent cases in one chapter where the borrowed past turns out to be a previous borrowing. [n=2 SUGGESTIVE] — the decisive test is whether the remaining laws contain a case where the borrowed material has a verifiable single origin.
The operation's economy is worth stating plainly, because it is the most efficient version of Law 45 in the book.
Nothing about the observance moved. Not the date, not the season, not the lights, not the gift-giving, not the feasting, not the association with the sun's return. The entire perceptible layer was left intact.
One thing changed: what the day was about.
That is the Roman lictors device operating on a calendar instead of a procession — total continuity on everything a person experiences, total change on the thing nobody can see. And it is cheaper than any of the chapter's other methods. Wang Mang needed scribes and forged manuscripts. Mao needed a national propaganda campaign. Cosimo needed years of public performance.
This needed a declaration. The population kept doing exactly what it had been doing, on the same day, in the same way, and the meaning was reassigned around them.
Which suggests the technique's most powerful form is not disguising a change as continuity but locating a change that requires no behavioural continuity to be manufactured, because the behaviour is already there and only its interpretation is in play.
Two flags, and the first is substantive.
🚩 [CONTESTED] — the identification of Aurelian's 274 cult. The passage names it as "an official cult of the sun-god Mithras." Aurelian's state cult of 274 is more usually identified with Sol Invictus, and the relationship between Sol Invictus and Mithras is a live scholarly question rather than a settled identity. The broader claim — that 25 December was chosen because it was already occupied — is itself disputed in the modern literature, with an alternative account deriving the date from a calculation about the Annunciation rather than from any pagan festival.
Nothing here settles that. What should be carried forward is that the passage's central mechanism (a crowded midwinter slot, absorbed rather than cleared) is plausible and well-attested in outline, and its specific attributions are contested. Do not cite this page as establishing that Christmas was taken from Mithras.
🚩 Terminology. The passage calls Mithras "the Aryan god of light." In 1983 German-language scholarship arisch was in use for Indo-Iranian, and that is almost certainly the sense intended. The English word carries other freight, and the phrase should be quoted with the note attached rather than reproduced bare.
🚩 SECONDARY WITHOUT PRIMARY, at one remove. This is a newspaper feature, not a monograph. It is far better sourced than anything in the chapter's body, which is a low bar; it names no historian of its own.
The closing question is the one the chapter never asks: why did the church not simply prohibit the day?
The marginal's own answer is that prohibition had been attempted at scale and had not worked. But the deeper reason is visible in the inventory of what the day contained.
Midwinter was not a doctrine. It was the point in the year when the light comes back, marked by every population in the northern empire independently, for reasons that had nothing to do with which god was credited. Slaves freed, work stopped, houses decorated, gifts exchanged, neighbours visited.
You cannot prohibit that. You can prohibit a name, an official cult, a sacrifice — but the underlying observance is generated by the season itself and by what people want in it, and it will simply reappear under whatever name is available.
Which is the sharpest reading of the whole case: the church did not capture a festival from a rival. It attached itself to something that no institution had ever owned, and which had been claimed and reclaimed by whoever was in a position to claim it. The victory looks like a conquest and was closer to a registration.
There is a thing people in your organisation do that you cannot stop and would rather they did differently.
The Friday drinks that have become a clique. The unofficial channel where the real decisions get discussed. The informal seniority that operates alongside the formal one. You have tried discouraging it. It went underground and continued.
Notice what the failed prohibition told you. A practice that survives being discouraged is being generated by something you have not addressed — a need for informal contact, for candour outside the record, for a way to know who actually decides. The practice is a symptom, and removing symptoms does not work when the cause is still producing them.
So stop trying to clear the slot and take it over instead.
Keep the time. Keep the form. Keep the feeling of the thing, which is the part people actually value and the part you cannot manufacture. Change only what it is for — put the resource behind it, make it official, give it a name, and let the thing that was happening anyway now happen under an arrangement you have a hand in.
This is cheap in exactly the way the Christmas move was cheap. You are not asking anyone to alter their behaviour, which is the expensive request. You are reassigning what the behaviour means, which costs a declaration.
And two honest limits.
You will not get to keep the meaning you assign. The practice existed before you and will outlast your framing; the next person will re-register it. Absorption is not conquest, it is occupancy of a slot you do not own.
And the technique only works where the underlying need is legitimate. If the thing you cannot stamp out is generated by something that ought to be fixed — people routing around a broken process, or a clique excluding somebody — then absorbing it makes you the sponsor of the problem. Absorb what you cannot prohibit; fix what you should not have to.
Strongest evidence is the sequence: state religion first, suppression attempted, absorption second.2 An institution that had already been given imperial backing and still had to co-opt is the strongest available demonstration that Law 45's method is what remains when force has been tried.
Tension one — the chapter never refers to its own best example. The marginal sits inside the Cromwell Transgression and demonstrates the technique more completely than the Observance does.
Tension two — the borrowed past turns out to be a prior borrowing. Aurelian attached to the solstice; the church attached to Aurelian. [n=2 SUGGESTIVE] with Wang Mang.
🚩 [CONTESTED] on the Mithras/Sol Invictus identification and on the derivation of 25 December. See above. Do not cite forward as established.
🚩 Terminology flag on "the Aryan god of light."
Open question — how much of the accumulated authority of any venerable form is the residue of prior co-options? If the venerable thing is usually somebody's earlier attachment, then borrow from the past is less like drawing on an original than like joining a queue.
Open question — does absorption require the practice to be doctrinally empty? Midwinter observance had no content that resisted reassignment. Whether a practice with a specific, articulated meaning can be co-opted the same way, this case cannot say.
Within Law 45, this marginal is the chapter's method at its most complete, and the chapter's own cases are weaker in specific ways it demonstrates. Cromwell destroyed the perceptible layer and left the slots empty; the church left the perceptible layer entirely intact. Mao had to argue a continuity; the church had only to declare one.
The closest structural relative is The Romans Kept Twelve Lictors — total continuity on what is experienced, total change on what is not. The two together establish that Law 45's most effective form is not disguise but reassignment, and that the chapter's framing of the technique as deception describes only its weaker versions.
The vault also holds two Mithras pages from unrelated non-Greene sources, and one of them independently corroborates a specific claim here. Roman Mithras: Westward Transmission, built from a practitioner source on war-yoga traditions, covers the cult's movement westward — which supports the marginal's statement that Mithras "had spread from Persia through Asia Minor to Greece, Rome, and as far as the Germanic lands and Britain," especially among the legions. Two unrelated sources, in two unrelated ingests, agreeing on the transmission route — a rare instance of genuine corroboration inside this vault.
Roman Mithras: Westward Transmission — the cult's movement out of Persia through Asia Minor into the Roman world, carried substantially by the army.
The corroboration is worth stating first because it is unusual in this build: two sources with nothing in common — a Swiss newspaper feature on Christmas customs and a practitioner text on war-yoga lineages — independently describe the same transmission, including the legionary vector. Neither could have been checking the other.
What the pairing adds is the reason the co-option was necessary and available at that particular date. A cult carried by the army is a cult distributed exactly where imperial administration reaches — every garrison, every frontier, Britain to the Rhine. That is why suppression failed: the observance was not concentrated in a place that could be policed but present wherever Roman power itself was present.
And it is why the co-option worked at scale. The church did not have to propagate a new observance across the empire, because Mithras had already done the distribution. Attaching to that date meant inheriting a network that a state cult and an army had spent generations building.
Which generalises into a selection criterion the chapter never states. Not all pasts are equally worth borrowing: the valuable ones are those already distributed through the population you need to reach. A venerable but locally-held tradition offers legitimacy in one place. One carried by an institution with reach offers legitimacy everywhere that institution went — and you acquire the reach along with the meaning.
Mithras the Bull-Slayer: Cosmogony — the cult's own theological content: the tauroctony, the cosmogonic act, the specific mythic material that made Mithras a god rather than a date.
Setting the theology beside the co-option shows what the co-option did not take, and that absence is the finding.
None of it transferred. The bull, the cave, the cosmogony, the grades of initiation, the mystery structure — the church took 25 December and left every scrap of the content behind. What was co-opted was a slot in the calendar, not a body of belief.
Which sharpens the distinction between two operations the chapter runs together. Mao borrowed content from The Water Margin — the fraternal ethic was the thing he needed and he took it. The Christmas move borrowed position and left content entirely.
That difference determines what each borrowing costs later. Borrowed content constrains you: Mao's insurgent robber-band inheritance sat awkwardly once he governed. Borrowed position constrains nothing, because you took nothing that carries its own logic — only a date, which has no opinions.
So the cheapest and most durable form of the technique is to identify what a rival tradition occupies rather than what it teaches, and take the occupancy. The theology is what makes a cult defensible by its adherents; the date is what nobody thought to defend, and it was the only part that mattered.
Sharpest implication. An institution with the emperor, the law and the whole imperial apparatus behind it tried suppression and could not clear a midwinter observance — because the observance was not generated by a rival cult but by the season and by what people wanted in it, and it would reappear under any available name. So the co-option was not a conquest of a competitor. It was a registration of something nobody had ever owned, which had been claimed and reclaimed by whoever was in a position to claim it, and which will be claimed again. The most effective version of Law 45 is not disguising a change as continuity but finding the place where the continuity is already running and only the label is in play.
Generative questions.
If the venerable thing you borrow is usually someone's earlier borrowing, is there any bottom to the stack — and does the accumulated authority belong to the practice or to the sequence of people who attached to it?
Borrowed content constrains and borrowed position does not. What else in this book's toolkit sorts along that line?
The church took the date and left the theology, and the theology is what its adherents would have defended. What are the undefended occupancies in a tradition you know well?