@SlyDessertFox Well, I was thinking more along reasons they could rather than why they would; namely, a far better position for the imperial treasury (the hard work of Tiberius is continued by his son rather than squandered by Caligula), a noticeably less stretched army (due to no invasion, or at least conquest, of Britain), an established precedent (Maurentania and Thracia are still annexed in the 40's), and an opportunity (the discussed maneuvers of Parthia circa 52 CE).
As to why they would, well if the new emperor, unlike Tiberius and Drusus, lacks the mitary glory needed to secure the loyalty of the legions, as Caligula and Claudius did OTL, they may well feel the need that a war in the east should do more than establish a status quo ante bellum. And depending on who the new emperor is, he may also feel an affinity for Mark Anthony; if it's Nero Germanicus say, he may well feel destined to complete his great-grandfather's dream of taking Parthia down a peg.
I may be wrong about all this though, and invite feedback.
That said, even with Sejanus being killed earlier, there is still the Praetorian Guard, who with the late PoD are still settled into Rome proper; and if the fiction of the Republic goes on longer without being openly mocked by the Emperor (as Caligula and later Domitian did), what does that really mean, in practical terms, for how the empire is run?
Forgot about these questions. Aside from Tiberius having a better reputation, the main effect of him staying involved is that the Praetorian Guard doesn't emerge as a governing power in its own right to the extent it did under Sejanus, which, combined with no reigns of terror (which otl saw 29-37 CE), means the semi-republican structures under imperial power are a lot healthier. And that gets into my above question...So, if Drusus succeeds after Tiberius, there should be more years of treasury-strengthening peace. Have you also given thought as to what might happen if Tiberius is persuaded-perhaps by Drusus-to stay in Rome instead of fleeing to Capri?
And yet another minor family point -- we still haven't considered Aemilia Lepida, one time finance to Claudius and sole great-grandchild not born of Agrippina the Elder. She had five children of her own who were about of the same age as the four younger children of Agrippina, meaning there's plenty of pairing potential. (For example, Agrippina the Younger, instead of being married off to Ahenobarbus, might be matched with Marcus Junius Silanus.)
Something else further down the line -- OTL, the Antonine Plague of 165-180 supposedly had its origins in Roman soldiers laying siege to the Parthian capital; even though this was the fourth such Parthian War, was the war of Aurelius different in how deep it went into Parthian territory? If so, does this mean that an earlier Roman success against Persia likewise means an earlier plague; or the timing of that epidemic more dependent on other factors (eg international trade, climate, Roman *health* policy, etc)?
Apparently Julius Caesar wanted to drain the marshes so it's possible. I don't know if the Romans would have known that would take care of disease though, they would probably just do it for extra farmland or to divert the Tiber where necessary.It probably had more to do with climate and health policy than anything else. There was apparently a lot of marshland in and around Rome; and marshes are great breeding grounds for all sorts of nasty bugs and viruses. Best thing would be to drain all those marshes, turn them into farmland.
The project Claudius got around to in 46 CE OTL? Yeah, that makes sense.Also, maybe Tiberius or Drusus could get around to building that port at Ostia. That might be a good thing to do too...
Of course. Being a better ruler then Caligula is like easiest thing in historyAll I know is that he would be better than Caligula. But practically everyone would be better than Caligula.
Another possible benefit here is that it might Butterfly Nero too...
I picture Gaius in TTL being a loyal supporter of a particular imperial claimant, somebody who gets his hands dirty with a big grin on his face.Also I have a feeling that Caligula if he still goes mad with a larger family he would be just kept in a room of a remote vila for the rest of his life.
Yeah, it does seem to keep coming back to that -- "the fiction of the Republic". OTL, of course, several emperors attacked this arrangement pretty directly, most importantly Caligula and Domitian, ensuring that any future pretense of republican rule would be just that, a pretense; but TTL, without Gaius Germanicus coming to power, it's going to be a bit longer before any emperor tries this. Does this have long term implication for the imperial government and post of princeps, or is the decline into naked autocracy pretty much built into the office?
@vandevere And it's not just avoiding disasterrous emperors like Caligula and Nero; thinking about this further, the OTL evolution of the Principate into the Dominate was a pretty long, complex road as is. I do wonder if Tiberius being succeeded by his son ends up formalizing succession earlier, the way it was under the Flavian and Antonine dynasties of OTL.
Wait why would gaius not go mad?I picture Gaius in TTL being a loyal supporter of a particular imperial claimant, somebody who gets his hands dirty with a big grin on his face.
CONSOLIDATE: Small question -- if the Julio-Claudian Dynasty rules in Rome longer, does that change how the empire numbers their years? For example, would the entitling of Augustus (in 27 BCE) be considered Year One TTL, even following the death of Augustus (so that, for example, OTL's 22 CE would be called "the year 49" TTL)? Or does the continuing fiction of the republic mean that the older calendar system (where years are referenced by who was consul) continues unabated?
Wait why would gaius not go mad?
There's also the rumors of Tiberius abusing him. Also I should add I don't necessarily think he ever went mad. He certainly was crushed by the pressure of being princeps, in a time before the principate even had a rudimentary bureaucracy and the princeps had an impossible workload. But I wouldn't say he was mad-if you ignore the more fanciful stuff that was likely made up and try to look at everything else from a perspective of an overworked out of his league young emperor who had no time for maintaining the fictions of a republic established by Augustus, you see a coherent if badly misguided ruling strategy.Two likely reasons. First of all, he's not going to be Emperor; and especially not at nineteen years of age. Secondly, he might not catch that illness that almost killed him otl. It's hypothesized that there was some mild brain damage from that, so if he doesn't get ill, he might be okay.
Lastly, it was also hypothesized that his insanity might have been due to PTSD. He was, after all, the only one of his family to survive otl Tiberius' reign, and the Sejanid Reign of Terror. With Sejanus out of the picture, and Gaius' siblings out of danger, there's even less reason for Gaius to go mad...
Edit: Forgot his sisters survived too.,,
There's also the rumors of Tiberius abusing him. Also I should add I don't necessarily think he ever went mad. He certainly was crushed by the pressure of being princeps, in a time before the principate even had a rudimentary bureaucracy and the princeps had an impossible workload. But I wouldn't say he was mad-if you ignore the more fanciful stuff that was likely made up and try to look at everything else from a perspective of an overworked out of his league young emperor who had no time for maintaining the fictions of a republic established by Augustus, you see a coherent if badly misguided ruling strategy.
How long do you think it will take to devolve? Specifically, how bad do things have to get before Roman armies start jockeying for the imperial position (as happened OTL in 69 and 193)?I would say the decline into autocracy is pretty much guaranteed at this point. But it will probably happen at a much later period...
How long do you think it will take to devolve? Specifically, how bad do things have to get before Roman armies start jockeying for the imperial position (as happened OTL in 69 and 193)?