# Caligula declaring war on the Sea. Did it happen?

**URL:** <https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489>\
**Category:** Factual Questions\
**Created:** [August 30, 2024, 9:56pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489 "2024-08-30T21:56:01Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![Bosda\_Di\_Chi\_of\_Tricor](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bosda_di_chi_of_tricor/32/16845_2.png) [@Bosda\_Di\_Chi\_of\_Tricor](https://boards.straightdope.com/u/Bosda_Di_Chi_of_Tricor)\
**Post date:** [August 30, 2024, 9:56pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/1 "2024-08-30T21:56:01Z")

</div>

Sueutonius tells us that~~

> _At last, as if resolved to wage war, he drew up his army on the shore of the ocean [the English Channel – Northern France], with his ballistas and other war machines. And while no one could imagine what he intended to do, he suddenly commanded them to gather up seashells, and fill their helmets and the folds of their tunics with them, calling them ” the spoils of the sea due to the Capitoline and the Palatine.”_
> 
> _As a monument to his success, he erected a lighthouse, upon which, as at the Pharos of Alexandria, he ordered lights to be burned in the nighttime for the direction of ships at sea. Finally, promising the soldiers a reward of a hundred denarii each, as if he had surpassed the most eminent examples of generosity, he said “Go your ways and be merry; for now you are rich!”_

But Politics is full of Slander and Libel, and Suetonius was writing decades later.

Did this actually happen?

---

<div class="post-metadata">

**Author:** ![Elmer\_J.Fudd](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/elmer_j.fudd/32/1211_2.png) [@Elmer\_J.Fudd](https://boards.straightdope.com/u/Elmer_J.Fudd)\
**Post date:** [August 30, 2024, 10:33pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/2 "2024-08-30T22:33:21Z")

</div>

I don’t trust any of the stories about Caligula. The only surviving histories of Caligula’s reign were written by his enemies, sensationalists, or historians using those enemies and sensationalists as their resource.

---

<div class="post-metadata">

**Author:** ![Sage\_Rat](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sage_rat/32/399_2.png) [@Sage\_Rat](https://boards.straightdope.com/u/Sage_Rat)\
**Post date:** [August 30, 2024, 11:08pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/3 "2024-08-30T23:08:10Z")

</div>

> **[Tour d'Ordre](https://fr.wikipedia.org/wiki/Tour_d%27Ordre)**
>
> modifier - modifier le code - modifier Wikidata La tour d'Ordre, ou aussi tour d'Odre est un phare romain, modifié au Moyen Âge, écroulé en 1644, qui dominait le port de Boulogne-sur-Mer. Il est le premier phare français dont l'existence est avérée\[LP 1\],\[Note 1\].
> Cet édifice disparu n'est connu que par des écrits et des dessins anciens.
> L'origine du phare romain remonte aux années 39 ou 40, au moment du projet de débarquement de Caligula en Grande-Bretagne.

> **[LA TOUR CALIGULA](https://histopale.net/les-communes/boulogne-sur-mer-son-histoire-son-patrimoine/la-tour-caligula/)**
>
> Imaginez une tour de quarante mètres de haut sur la falaise de Boulogne sur Mer au niveau de Nausicaa !! Il s'agissait d'un phare construit par les Romains , cet édifice résistera aux siècles , il ne s'écroulera qu'en 1644 vaincu par le recul de la...

---

<div class="post-metadata">

**Author:** ![Elmer\_J.Fudd](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/elmer_j.fudd/32/1211_2.png) [@Elmer\_J.Fudd](https://boards.straightdope.com/u/Elmer_J.Fudd)\
**Post date:** [August 30, 2024, 11:22pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/4 "2024-08-30T23:22:15Z")

</div>

If Caligula was mounting a war on the sea, why did he send his legions all the way to the English Channel? He could have just sent his troops to Ostia. Just a wild guess, but maybe his build up on the English Channel was for an aborted war on, I don’t know, _England_?

---

<div class="post-metadata">

**Author:** ![Tamerlane](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tamerlane/32/7602_2.png) [@Tamerlane](https://boards.straightdope.com/u/Tamerlane)\
**Post date:** [August 30, 2024, 11:48pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/5 "2024-08-30T23:48:12Z")

</div>

> [@Elmer\_J.Fudd](#):
>
> The only surviving histories of Caligula’s reign were written by his enemies, sensationalists, or historians using those enemies and sensationalists as their resource.

Yeah, Suetonius is a fun gossip but more untrustworthy than usual as a source. Seeing as there isn’t much else that survives about Caligula to verify anything, it’s hard to take at face value. We can probably surmise that the stories about how unpopular he was had some basis in fact or Suetonius would haven’t had motivation/ease to shit on him so thoroughly.

But the details on exactly how nutty he was cannot be substantiated in any fashion.

---

<div class="post-metadata">

**Author:** ![Sage\_Rat](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sage_rat/32/399_2.png) [@Sage\_Rat](https://boards.straightdope.com/u/Sage_Rat)\
**Post date:** [August 31, 2024, 12:21am UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/6 "2024-08-31T00:21:15Z")

</div>

Speculation…

It looks like, from the time of Julius Caesar, the Romans had set up a transit route between the city of Gesoriacum (Boulogne) in Brittany and Dubris (Dover) in Kent. The Roman Navy was headquartered in Boulogne and policed these shipping lanes from there.

[Two lighthouses](https://en.wikipedia.org/wiki/Dubris) were eventually built in Dover, but not until several years or decades after the Roman invasion of 43 AD.

As best we can tell, those two are designed to look similar to the ones built by Caligula’s crew.

So, again, this is just speculation but my feeling is that a military lighthouse, of the sort described by Suetonius, would be fairly quick-and-easy - maybe made of wood or otherwise not well constructed - and just sort of randomly placed, without much reason.

The lighthouse that seems to have existed was placed in the Navy HQ port and appears to have been of a solid construction. There’s no mention of it ever being anything other than a professionally constructed, serious bit of Roman engineering.

It was apparently updated by Charlemagne, and seems to have been repaired through the Middle ages. The location seems to have been a pretty good one.

The administration that followed Caligula’s seems to have felt like the lighthouse was good enough to match and copy in design on the other side of the shipping lines. They seem to have concurred that it was a good thing to have, and were proud enough to match the style.

Given that they attribute it to Caligula, there’s probably no reason to think that it was the product of - say - a more reasonable and informed Senate, doing good work.

So I’d probably vote that it was ordered into existence by Caligula. It probably was a very reasonable thing to build in that location and wasn’t some arbitrary, spur-of-the-moment thing. (Whether it was of a reasonable size would be a good question though. It looks like the lighthouse was between 40 and 65m tall, whereas the ones in Dover were only 24m.)

Caligula’s successor (Claudius), just a few years later, did actually go on to attack Britain. If we accept that Claudius was a smart man then we might presume that Caligula’s thought to do it was also reasonable. Building up the port that you are likely to launch out of would also be fairly reasonable.

So it does seem plausible that there was some serious plan to launch an invasion on Britain. Since, factually, there wasn’t one until the reign of Claudius, we have to assume that either Caligula was still preparing things and, for example, got assassinated before things were ready, Or, that he did decide to forego the effort, for some reason. In that latter case, whether the decision back out was so dramatic as Suetonius implies, I’d be pretty skeptical.

It looks like we can confirm, from archaeology, that Caligula was big on construction:

> **[Nemi ships](https://en.wikipedia.org/wiki/Nemi_ships)**
>
> The Nemi ships were two ships, of different sizes, built under the reign of the Roman emperor Caligula in the 1st century AD on Lake Nemi. Although the purpose of the ships is speculated upon, the larger ship was an elaborate floating palace, which contained quantities of marble, mosaic floors, heating and plumbing, and amenities such as baths. Both ships featured technology thought to have been developed historically later. It has been stated that the emperor was influenced by the lavish lifesty...

> **[Caligula's Giant Ship](https://en.wikipedia.org/wiki/Caligula%27s_Giant_Ship)**
>
> Caligula's "Giant Ship", also known as the "Round Ship", was a very large barge, the ruins of which were found during the construction of Rome's Leonardo da Vinci International Airport in Fiumicino, Italy, in the 1950s. This was previously a Roman port a few kilometres north of Ostia at the mouth of the Tiber River. The ship was dated to c. 37 AD using dendrochronological dating methods.
> This Roman barge had a length of about 312 feet (95.10 m) and a beam of about 69 feet (21.03 m). It was proba...

> **[Aqua Claudia](https://en.wikipedia.org/wiki/Aqua_Claudia)**
>
> Aqua Claudia ("the Claudian water") was an ancient Roman aqueduct that, like the Aqua Anio Novus, was begun by Emperor Caligula (37–41 AD) in 38 AD and finished by Emperor Claudius (41–54 AD) in 52 AD.
> It was the eighth aqueduct to supply Rome and together with Aqua Anio Novus, Aqua Anio Vetus and Aqua Marcia, it is regarded as one of the "four great aqueducts of Rome".
> Its mainsprings, the Caeruleus and Curtius, were situated 300 paces to the left of the 38th milestone of the Via Sublacensis.
> ...

> **[Vatican obelisk](https://en.wikipedia.org/wiki/Vatican_obelisk)**
>
> The Vatican Obelisk is an Egyptian obelisk, one of the thirteen ancient obelisks of Rome. This obelisk is located in St. Peter's Square, in Vatican City. It is the only ancient obelisk in Rome that has never fallen.
> Made of red granite, it has a height of 25.3 meters and, together with the cross and the base (composed of four bronze lions, by Prospero Antichi), it reaches almost 40 meters.
> It is of Egyptian origin, devoid of hieroglyphs and comes (titles), according to Pliny, from the city of H...

And, to fund that, he seemed to like to raise taxes.

We might imagine that people were a bit skeptical of all of the spending and mega-projects, especially when some of his projects seem less like public goods and more like private opulence, and they were paying for it.

Whether he was crazy like “craaaaaazy” or more just someone in the mold of [Nicolae Ceausescu](https://en.wikipedia.org/wiki/Ceau%C8%99ima), I can’t say. Archaeology supports at least the latter.

---

<div class="post-metadata">

**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\
**Post date:** [August 31, 2024, 12:42am UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/7 "2024-08-31T00:42:30Z")

</div>

[Moderating]  
Posting links without explanation, and posting untranslated in languages other than English, are both prohibited here. Please explain your links.

---

<div class="post-metadata">

**Author:** ![Tamerlane](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tamerlane/32/7602_2.png) [@Tamerlane](https://boards.straightdope.com/u/Tamerlane)\
**Post date:** [August 31, 2024, 12:42am UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/8 "2024-08-31T00:42:30Z")

</div>

> [@Sage\_Rat](#):
>
> Gesoriacum (Boulogne) in Brittany

Pedantic nit pick, but Boulogne-sur-Mer is on the opposite side of northern France from Brittany in the Pas-de-Calais. It’s close positioning to England is what allowed Stephen of Blois (count of Boulogne through his wife) to sprint across the channel in 1135 AD to seize the throne of England before even his own elder brother Theobald could react.

---

<div class="post-metadata">

**Author:** ![Bosda\_Di\_Chi\_of\_Tricor](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bosda_di_chi_of_tricor/32/16845_2.png) [@Bosda\_Di\_Chi\_of\_Tricor](https://boards.straightdope.com/u/Bosda_Di_Chi_of_Tricor)\
**Post date:** [August 31, 2024, 2:09am UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/9 "2024-08-31T02:09:46Z")

</div>

Some of us use DuckDuckGo.  
It has no translation mode, to the best of my knowledge.

---

<div class="post-metadata">

**Author:** ![snowthx](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/snowthx/32/10660_2.png) [@snowthx](https://boards.straightdope.com/u/snowthx)\
**Post date:** [August 31, 2024, 11:30am UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/10 "2024-08-31T11:30:14Z")

</div>

Sidebar: DDG does, like other browsers. Select text, then “Translate” will appear as an option with Copy, Select All, etc. /sidebar

---

<div class="post-metadata">

**Author:** ![scudsucker](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/scudsucker/32/14101_2.png) [@scudsucker](https://boards.straightdope.com/u/scudsucker)\
**Post date:** [August 31, 2024, 1:44pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/11 "2024-08-31T13:44:11Z")

</div>

I get this this is FQ, but the question appears to be answered. So… onto a smallish tangent.

Was it not Cnut (aka Canute), King of England, who showed the limits of his power by attempting to order the sea to change tides?

> **[1066 and All That](https://en.m.wikipedia.org/wiki/1066_and_All_That)**
>
> 1066 and All That: A Memorable History of England, Comprising All the Parts You Can Remember, Including 103 Good Things, 5 Bad Kings and 2 Genuine Dates is a tongue-in-cheek reworking of the history of England. Written by W. C. Sellar and R. J. Yeatman and illustrated by John Reynolds, it first appeared serially in Punch magazine, and was published in book form by Methuen & Co. Ltd. in 1930.
> Raphael Samuel saw 1066 and All That as a product of the post-First World War debunking of British greatn...

---

<div class="post-metadata">

**Author:** ![scudsucker](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/scudsucker/32/14101_2.png) [@scudsucker](https://boards.straightdope.com/u/scudsucker)\
**Post date:** [August 31, 2024, 2:59pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/12 "2024-08-31T14:59:22Z")

</div>

(Note: “1066 and all that” is a humerous book about UK history, and is in no way authoritative)

---

<div class="post-metadata">

**Author:** ![Mk\_VII](https://avatars.discourse-cdn.com/v4/letter/m/5f9b8f/32.png) [@Mk\_VII](https://boards.straightdope.com/u/Mk_VII)\
**Post date:** [August 31, 2024, 6:01pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/13 "2024-08-31T18:01:45Z")

</div>

Suetonius is tabloid history - racy, anecdotal, highly readable, not always accurate where it can be checked.

---

<div class="post-metadata">

**Author:** ![md-2000](https://avatars.discourse-cdn.com/v4/letter/m/9d8465/32.png) [@md-2000](https://boards.straightdope.com/u/md-2000)\
**Post date:** [August 31, 2024, 6:24pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/14 "2024-08-31T18:24:15Z")

</div>

The story I recall reading was that Canute was annoyed at obsequious courtiers. When one or some suggested he was so awerful, he even had command over the sea itself, he took his court down to the sea and ordered the tide to stop coming in just to prove a point. Often this is retold in stories as him assuming he could order the sea to do his bidding, but instead he was simply showing the court that he was annoyed by nonsense flattery.

---

<div class="post-metadata">

**Author:** ![Sage\_Rat](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sage_rat/32/399_2.png) [@Sage\_Rat](https://boards.straightdope.com/u/Sage_Rat)\
**Post date:** [August 31, 2024, 11:24pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/15 "2024-08-31T23:24:40Z")

</div>

> [@Chronos](#):
>
> Please explain your links.

It is two French language pages that describe the lighthouse that does appear to have been factually constructed. That much of the story does seem to be true.

There are two (probably) smaller but similar lighthouses that were constructed in Dover, by Emperor Claudius’ administration, a few years later that still exist and there are some pictures of the original at the links.

---

<div class="post-metadata">

**Author:** ![Measure\_for\_Measure](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/measure_for_measure/32/557_2.png) [@Measure\_for\_Measure](https://boards.straightdope.com/u/Measure_for_Measure)\
**Post date:** [September 1, 2024, 6:58am UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/16 "2024-09-01T06:58:54Z")

</div>

Wiki has a page on Canute and the tides:

> **[King Canute and the tide](https://en.wikipedia.org/wiki/King_Canute_and_the_tide)**
>
> The story of King Canute and the tide is an apocryphal anecdote illustrating the piety or humility of King Canute the Great, recorded in the 12th century by Henry of Huntingdon.
> In the story, Canute demonstrates to his flattering courtiers that he has no control over the elements (the incoming tide), explaining that secular power is vain compared to the supreme power of God. The episode is frequently alluded to in contexts where the futility of "trying to stop the tide" of an inexorable event is...

---

<div class="post-metadata">

**Author:** ![griffin1977](https://avatars.discourse-cdn.com/v4/letter/g/977dab/32.png) [@griffin1977](https://boards.straightdope.com/u/griffin1977)\
**Post date:** [September 1, 2024, 2:06pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/17 "2024-09-01T14:06:15Z")

</div>

I’d say it probably happened. At the end of the day you have a single historian (Seutonius) writing a couple of generation later, but based on first hand accounts we don’t have access to. Yeah those accounts were almost certainly written by Romans of the senatorial class who had an axe to grind.

But it’s the ancient world. If we only believe events happened that are described by unbiased primary sources, then nothing happened before like 1600, before that the human race was just sitting around doing nothing waiting for the historical record to develop 😉

---

<div class="post-metadata">

**Author:** ![Sage\_Rat](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sage_rat/32/399_2.png) [@Sage\_Rat](https://boards.straightdope.com/u/Sage_Rat)\
**Post date:** [September 1, 2024, 4:20pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/18 "2024-09-01T16:20:01Z")

</div>

I believe that approach was tried and, after enough counterexamples came through in archaeology or some earlier records were recovered, a bit more scepticism was added in.

Generally, I’d view it as a key into the history but a questionable one without something more to unlock. Once you start getting some archaeology in there, you can start to get a sense what things actually happened, and the written history tells you what the motivations might have been.

A semi-fictional work but you might read Josephine Tey’s _The Daughter of Time_.

---

<div class="post-metadata">

**Author:** ![Elmer\_J.Fudd](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/elmer_j.fudd/32/1211_2.png) [@Elmer\_J.Fudd](https://boards.straightdope.com/u/Elmer_J.Fudd)\
**Post date:** [September 1, 2024, 4:51pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/19 "2024-09-01T16:51:13Z")

</div>

99% of what the general public knows about Caligula is thanks to John Hurt. The remaining 1%; Malcom McDowell.

---

<div class="post-metadata">

**Author:** ![susan](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/susan/32/17537_2.png) [@susan](https://boards.straightdope.com/u/susan)\
**Post date:** [September 1, 2024, 7:38pm UTC](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489/20 "2024-09-01T19:38:40Z")

</div>

I’m not the general public, so I don’t count, but I know about Caligula from Suetonius, Robert Graves, and Latin classes.

[Next page](https://boards.straightdope.com/t/caligula-declaring-war-on-the-sea-did-it-happen/1006489.md?page=2)
