Sol Invictus

In Jovian mythology it is called the skyfire, the harbinger of centuries of ash. Mercurians sing about a time the sun burned so bright it doubled in size, when it ate the planets and dug its teeth into Mars. Some of the fundamental texts of the Romanic faith are fragments of an epic about planetary deities fighting the sun. All of these stories are believed to refer to Sol Invictus; an event that predates history yet survives in myth.
  Sol Invictus is a prehistoric period of extreme solar activity. Some believe it was a singular but extraordinarily powerful Solar Pulse. Whatever happened to the sun, it left its mark. Scars from Sol Invictus are found across the Sol System.
  The Solar Invasion of Mercury has put Sol Invictus into new and terrible context. It has renewed interest in mapping out the impact of the event, and determining the capabilities of the sun. There is an ongoing debate about renaming the event to prevent further panic. A documentary about Sol Invictus was quietly taken off the air by the SBC.

Impact

The impact of Sol Invictus is evident in planetary and lunar stratigraphy. Although the exact characteristics vary between surfaces, stratiographers have assembled an identification strategy after thorough cataloguing of known Invictus layers. The primary tell is heightened levels of solar radiation that peak and sharply drop off. This radiation is often tailed by lower levels of radiation composed of an abnormal amount of cosmic influence. Rocky layers often have suevite, a composite rock that is a combination of melted and unmelted minerals. The best known sign of an invictus layer is the presence of motherveins. These rich and potent crystal veins are the motherlode of crystal mining, and are commonly how invictus layers are unearthed.
One of the most sought-after materials in the entire system is invictus marble. Invictus marble is a fine, typically white, marble, streaked with crystal. It is believed to be capable of holding powerful enchantments.

Year Zero

When the Timekeeper Institute created their proposal for a Sol Standard Timekeeping, they decided to use Sol Invictus as Year Zero. Sol Invictus was far too ancient to be pinpointed down to the exact year, so they picked one that aligned with the anniversary of the creation of the Jovian Senate. This gave them a strong ally in promoting the use of the timekeeping system, but wasn't so biased as to prevent its adoption beyond Jupiter.

See Also


☉︎ Chained Sun
History Scorching of Mercury · Sol Invictus ( Heliomachy )
Species Scourge
Timeframe
200 000 to 240 000 years ago
Also Known as
Year Zero, Sunswallow, Heliomachy, Skyfire
Notice: This article is a stub. It may be expanded later!

Comments

Author's Notes

Sol Invictus is latin for Sun Invincible, or perhaps Sun Unconquered. It was the name of [an aspect of] a late roman sun god, elevated to chief of the gods. It's hard to say anything definitive about a god, much less a god in a polytheistic religion whose prominence changes over the centuries.
  The idea for this article came to me almost surreptitiously as I was reading about carbon dating. I can't tell you quite how I got from there to the historical Sol Invictus, but once I read that name, I had the idea. Perhaps it was because two things were pretty prominent in my mind, I wanted a prehistoric event for the Year Zero of Solaris, and I knew the story of Solaris begins with the Solar Invasion of Mercury.
  Here's some more historical context that makes me especially happy about the timing of this article. The deity Sol Invictus has been celebrated in many ways on many different dates, but a date that stands out is Sol's birthday on December 25, then the Winter Solstice. Today December 25 is often celebrated as Christmas, commemorating another famous birth. Did the son supplant the sun? I certainly wouldn't be the first to suggest it.
  If you want to read more about Sol Invictus, there's an excellent repository about Sol Invictus and the two nativities at Encyclopaedia Romana


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Nov 29, 2025 22:55 by Mochi

That first paragraph is just beautiful. I hope to learn more about invictus marble! :D

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Nov 30, 2025 10:14 by Annie Stein

Thank you!

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Nov 29, 2025 23:33 by Asmod

Gods your cosmology always brings me joy

Nov 30, 2025 10:14 by Annie Stein

Thank you, it's great fun!

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Nov 29, 2025 23:41 by Solitaire Quill

Awesome stuff, look forward to reading more articles about Solaris this World Ember. Cheers.

Nov 30, 2025 10:14 by Annie Stein

Thank you so much!

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Nov 30, 2025 10:13 by Dr Emily Vair-Turnbull

Well that is horrifying to think about. Let's hope it never does that again.

Emy x
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Nov 30, 2025 10:18 by Annie Stein

Fingers crossed!

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Nov 30, 2025 10:52 by CoolG

So haunting yet interesting! I can imagine religions or culting forming around the event

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Dec 2, 2025 13:05 by Annie Stein

There's got to be, right? It's prime cult material

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Dec 4, 2025 12:00

This invictus marble sounds so beautiful. Are those crystals transparent? I like the fact about the calender. IIt reminds me of how many of our modern-day holidays have been linked to other events to make them more acceptable to the general public.

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Dec 8, 2025 10:05 by Annie Stein

Thank you! I would imagine it varies, some crystals are more transparent, others more opaque.   Calendars, like a lot of things, are surprisingly political once you learn about their history. It's a helpful thing to keep in mind when writing about them.

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Dec 4, 2025 20:53 by E. Christopher Clark

The bit about Year Zero was an excellent tidbit/addition to what was already a great article. Nice work!

Dec 8, 2025 10:08 by Annie Stein

Thank you! It was there from the get go, but as a small sentence awkwardly squished between the highlighted middle section and the suggestions on what to read next. It was very easy to miss.   Since defining a year zero was one of the main reasons I wanted to write this to begin with, I'm very glad it stands out more now.

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Dec 9, 2025 22:41

I love your cosmology. Makes me really curious to learn more about what actually happened. Beautiful work!

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