“Why isn’t the new year on winter solstice?”

The answer, honestly, is that the Romans had no fucking idea how to run a calendar.

Like, seriously, people notice "OCTOber" and "DECEMber" and say, "hey, those mean 'eight' and 'ten', but they're the 10th and 12th months, what's up with that?".

If you've got a little more history, you'll know that July and August are named after Julius and Augustus Caesar, and think, "oh, they added those two months and bumped the rest of the months back."

Nope. The Romans were way, way worse at calendars than that.

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July and August were actually originally Quintilis and Sextilis - the fifth month and the sixth month. They were called this because the year traditionally started in March. So they had Martius, Aprilis, Maius, Junius, Quintilis, Sextilis, September, October, November, December.

Martius was named for Mars; Junius was named for Juno. We have no idea what Aprilis and Maius were named after. (No, really.) Then they got lazy and just numbered the months.

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"But wait," you ask, "what about January and February?" Hold onto your butts, because calling the months by their numbers? Not even close to the laziest the Roman calendar got.

Between the end of December and the beginning of Martius were 50-odd intercalary days. They didn't HAVE months associated with them. They were just sort of there.

I swear I am not making this up.

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In addition, each month had either 30 or 31 days. I was going to say "alternated between" but I looked it up and nope, the Romans decided that was too easy, so it actually went:

Martius 31
Aprilis 30
Maius 31
Junius 30
Quintilis 31
Sextilis 30
September 30
October 31
November 30
December 30
intercalary 51

Okay. This is where we are at the beginning of the Roman Republic.

Look at that. Remember it. You will look back on this and say "actually, that makes sense" after what comes next.

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At the beginning of the Roman Republic, the Senate decided to fix the calendar. This was for two reasons:

1) The Romans thought the Greeks kicked ass, and wanted to emulate their calendar.

2) Count those days. You will notice that they add up to 355, which means that each year is actually ten (and change) days /shorter/ than an actual solar year - which meant that by the time of the Republic, March was somewhere in the autumn.

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So the Senate decided to do some reforming. They added two brand-new months to the calendar, Januarius and Februarius. Januarius was named after Janus, because his holiday fell about a week into the new month. (Janus was the god of doorways. We'll come back to him.) February was named after the Februa, a feast that fell in the middle of the new month and that had, in fact, long since been replaced by Lupercalia, an identical feast on the same date with a different name For Reasons.

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The Senate also added an intercalary month, Mercedonius, the Month of Wages.

Yes, an intercalary month. I want to make sure that's clear.

They also changed the lengths of the months to better fit the Greek system. The Greeks had largely lunar months, so they alternated between 29-day and 30-day months. Once again, the Romans said, "you know, we like this, but it's too easy".

Look, the next post is going to go into "what the hell was WRONG with them?" territory, just warning you.

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This is the calendar the Roman Senate ended up with:

Januarius 29
Februarius 23
Mercedonius 23
Martius 31
Aprilis 29
Maius 31
Junius 29
Quintilis 31
Sextilis 29
September 29
October 31
November 29
December 29

See what I meant about Mercedonius being an intercalary month? It's literally in the middle of February. Like, they got 3/4 of the way through February, got bored, and decided to do something else for a month and come back later.

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Also, the Romans had caught on to leap years by this point, so every fourth year, Februarius had an extra day on the end, bringing its total to 29.

I want to be clear, though, that while they'd caught on to leap days, they STILL had not caught on to the length of the damn year. Count those days again: it's 378. By the time of poor Gaius Julius Caesar in 46 BC, the calendar was so fucked up that he needed THREE intercalary months to right it again.

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The Julian reform - which was ordered by our friend G.Jiddy but not, as far as we know, actually created by him - did three important things.

First, it added those three intercalary months to put the year back where it was supposed to be (March had slid around to the dead of winter).

Second, it got rid of Mercedonius, putting the year back at 355 days.

Third, it scattered ten new days throughout the year, which gave us the calendar we know today.

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Julius's reforms still weren't /quite/ right - the length of a year is just a fraction shorter than 365.25 years, which forced the Gregorian reform of 1582 (and hey, I remembered that year right on the first try). But it was good enough for government work, as they say.

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Oh, also, as (*scrolls back four million pages*) @troubleMoney mentioned, the priesthood - who until not long before Julius controlled the /release/ of the calendar, meaning that people paid attention to them to know when the months started - would extend or contract years to keep politicians (who were on yearly terms) they liked in power or force politicians they didn't like out early.

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So remember how we were talking about why the year doesn't start on the winter solstice? A couple reasons. First, it /never/ did (in the Roman tradition, anyway). It originally started in March, which contained the spring equinox but didn't /start/ on it.

The start of the year was moved back to January for political reasons. Remember Janus, the god of doorways? It was considered auspicious for consuls to change out near his festival. His festival was nearest the calends of January.

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So consuls wanted to start on the kalends (I know I spelled it calends in the last toot, hush) of Januarius so they could start their term with an offering to the god of doorways, who would then grant an auspicious transition between consuls.

So why didn't the kalends of Januarius get moved back to the winter solstice? Because of Yule.

Not because the Romans celebrated Yule - it was a pagan holiday. The Romans celebrated Saturnalia.

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Saturnalia was originally on the 18th of December (or, as the Romans would have measured it, the 13th/12th/14th day before the kalends of Januarius), but it expanded, becoming a week-long event. This was partly because, well, people liked a party at the end of the calendar year (not to be confused with the end of the actual year pre-Republic) and partly because it was, consciously or not, taking over Yule.

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Moving the kalends of Januarius back to the winter solstice would have necessarily moved Saturnalia /away/ from the winter solstice - and the people who'd been celebrating Yule and were now celebrating Saturnalia didn't want that. So Saturnalia stayed where it was, and Januarius stayed where it was. And that's why the new year doesn't start on the winter solstice.

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Incidentally, the Senate voted after Gaius Julius Caesar's death to rename Quintilis after him because he was born then, and likewise Sextilis after Augustus Caesar.

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@noelle IMHO, the new year should start with the beginning of the spring.

@noelle I mean, the fact that our last four months are numbers but not the right numbers tells you all you need to know.

You know what calendar I like? The Shire calendar at the back of my dad's Lord of the Rings omnibus.

@noelle I'm amused by your use of "pagan" to mean "non-Roman religion." Talk about shifting goalposts!

@DialMforMara That's what it meant! To the Romans, "paganus" was someone who lived in the country and practiced a non-Roman religion. :)

@noelle so did the meaning change when Rome adopted Christianity, to become "anyone who isn't Christian"?

I've also seen it used in a couple weird places to refer to ancient non-Jews, but those might have been books for a Christian audience.

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Which is why there is exactly one week between Christmas and New Year's! :D

@noelle was that the same senate that conspired to assassinate him?

@meena Yes, actually, although a different segment of it. Marcus Antonius had Quintilis named after Caesar just after his assassination.

Sextilis wasn’t named after Augustus for another 40 years or so, which implies substantial turnover in the Senate.

@noelle that was hilariously awesome. Thank you so much!

@noelle wasn't the move to January prompted by the planning of the "Spanish" campaign and they didn't want to change consuls (the commanders-in-chief) with the war already ongoing?

Well, February is a pretty boring month, at least when it's not Purim or Valentine's.

@noelle This is why I say calendars are scary. I tried making a library that could model arbitrary calendars. Intercalary days? That's fine, I can handle the French Revolutionary Calendar's Sansculottides. But halting in the middle of a month? At least the leap day is after the intercalary period...

@dhasenan @noelle dealing with calendars is crazy enough there is literally a book on it. I recall it being more satisfying for the details of multiple systems than the C library though.

@a_breakin_glass as far as I can tell, the answer is "because they felt like it".

@noelle fucking romans, trolling everybody who came after them

Were those intercalary days associated with particular gods or festivals, or was it just "huddle around the fireplace" time?

@DialMforMara there were a lot of festivals and holidays in the intercalary months, but mostly they just boiled down to "the ancient Romans really liked the number ten".

@noelle It’s like the #hobbit calendar if the hobbits smoked pipe-weed all day


I love how much latin vocab is in the wikipedia article on Maius.

"The Romans considered May an infelicitous month. Although it began with one of the most notoriously licentious holidays of the Roman calendar, the Games of Flora (Ludi Florae), the middle of the month was devoted to propitiating the lemures, the restless shades of the dead."


Also, for anybody else following the thread, apparently Aprilis could be named after "aperio", "I open" (aperature), relating to flowers opening. Or it could be after Aphrodite, or maybe an older PIE word. Like you said nobody knows.

This whole thread is great, go hop in there.

@Elizafox @noelle

clearly this means Avril Lavigne becomes a time traveler eventually

@Elizafox @noelle

heck, at this point, i'd probably just number the days in the year directly. (so that, for example, today -- in the modern calendar -- is day 356).

@Elizafox @noelle well, at this point, yeah. and it doesn't really matter when, at the end, the date is probably stored as unixtime (or its windows equivalent).

@Elizafox @noelle @devurandom I've become rather partial to the idea of 13 months of 28 days (an even 4 weeks each) with 1–2 intercalary days at the end of the year for partying.

@Elizafox @noelle Wasn't it the 25th? I thought that, plus the 11 days for the Gregorian reform, was why the UK tax year starts on April 5th now.

@noelle @Elizafox It was the 25th in most of Europe for the Middle Ages (as I said) but also the 15th for a while in the more ancient bits of Rome (as you said): My assumption that the second had carried over to the first was wrong.

@Elizafox @noelle (Also, UK tax year ends on April 5th, next one starts on the 6th.)

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