[Serious] Vulcan was a fictional planet to explain Mercury's orbit, phlogiston was a fake element explaining why fires went out, what else didn't actually exist because scientists were lazy?
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πŸ‘€︎ u/Gate4043
πŸ“…︎ Jan 14 2022
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Phlogiston by Ibrahem Swaid
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πŸ‘€︎ u/Lol33ta
πŸ“…︎ Dec 05 2021
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Is anything floating around the phlogiston?

I was just wondering if outside of crystal spheres, inside the phlogiston, is there anything just floating around? I'm thinking like astroids or old broken down Soelljammer ships? Is this a normal thing to find or wouldn't this really happen?

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πŸ‘€︎ u/phage10
πŸ“…︎ Nov 11 2021
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i like the word phlogiston

maybe ill look up what it means someday

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πŸ“…︎ Sep 26 2021
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The Phlogiston Explorer

The Phlogiston Explorer - all pretty, no lines and stuff

The Phlogiston Explorer - slap dash grid version

In space no one can hear you TTRPG!

I wanted to try an create a (hopefully) believable looking space ship with the Fantasy Battlemaps 2.0 assets in Inkarnate. There is a bridge, captain's quarters, crew quarters, galley, bathroom, washroom, engine room and two weapons turrets, or rough approximations of such.

Free to clone, edit, download and use if you so wish! :)

https://inkarnate.com/m/5qJ8Qv--the-phlogiston-explorer/

#DnD #inkarnate #DnDmaps #DnDinspace #battlemap

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πŸ‘€︎ u/visionflow
πŸ“…︎ Sep 06 2021
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I’ve changed the Phlogiston to the Astral Sea and I think it’s a change for the better

Like the title, in my 5e Campaign I’ve changed the Phlogiston to the Astral Sea. I like this change, it allows a closer interaction with the Gith, Mind Flayers and it has cool interactions with various Astral Spells.
Also I was never a big fan of the Phlogiston, I felt it had some silly rules.
Just a suggestion for DMs who are considering starting a Campaign

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πŸ‘€︎ u/DownVoterInChief
πŸ“…︎ Jul 15 2021
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In Spelljammer when travelling through Phlogiston, fire still bad in air envelope

Sorry to be asking about Spelljammer when there is no official 5e rules for it, but hoping some old school players might be able to help me out. I am thinking of introducing some Spelljammer rules (ships and the Phlogiston) into my new campaign setting using 5e rules and I have read some conversions of Spelljammer to 5e. But they says that Phlogiston is very flammable (cool, I like it) but also that the Spelljammer ships have an air envelope around them.

So if a ship has an air envelope around it but is travelling through the Phlogiston, would you rule that air and Phlogiston are mixed and fire spells do extra damage (and bad consequences) or does the air envelope keep the Phlogiston out (and fire only does extra damage outside the air envelope? I am happy to homebrew a rule but wondering what people did in the past.

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πŸ‘€︎ u/phage10
πŸ“…︎ May 09 2021
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Steampunk Halloween by Antarctic Press - Will phantoms of phlogiston fall before the stalwarts of steam, or will they be bold enough to best the brass and glass? globalcomix.com/c/steampu…
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πŸ‘€︎ u/AppletiniOnFleek
πŸ“…︎ Jun 21 2021
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What would happen if a fire ooze entered the phlogiston?

So if there is a red ooze they don’t really emit fire right? Lava oozes would for sure emit fire which would blow everything up but would a fire ooze? I always assumed the ectoplasm from the ooze itself would cover the fire kinda like jello over fruit or whatever.

Is that right?

And if so, if you cut said ooze would it then open up the fire and then ignite?

Would love opinions on the matter as I want to make sure I do it right.

Thanks!

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πŸ‘€︎ u/Limpinator
πŸ“…︎ Jun 19 2021
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Phlogiston [22x22] [2048x2048] [OC] [Battlemap] [Space] [Stars] [BBEG] A place for your BBEG to wreak some havoc!
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πŸ“…︎ May 31 2021
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Adella, Phlogiston Savant
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πŸ‘€︎ u/UristMasterRace
πŸ“…︎ Jul 19 2021
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Question about the Phlogiston

So I am new to spelljammer and have had a question. Why are there no gods within the phlogiston? I have read the 6 reasons in the Adventures Guide but it doesn't make sense to me. Is it just something that has to be accepted and moved on or is there an actual explanation?

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πŸ‘€︎ u/GrafeClan
πŸ“…︎ Jan 22 2021
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Phlogiston, the flame that won't die out

Lore

Ages: 25, 28

Nationality: Texan

Names: Noah Hernandez, Sebastian Cooper

Callsign: Phlogiston

Sebastian Cooper, like most people, feared death. Not the actual dying part that doesn't matter, not really. Sebastian feared the incomprehensible nonexistence that came after. Fortunately, Sebastian was in the right field of research to tackle this problem. Even more fortunately, his partner in both science and life, Noah Hernandez was not nearly as dour. Somehow, Sebastian was even more fortunate in that many wealthy individuals shared his concerns and were willing to dump as much money into his research as he requested, even though he hadn't come up with substantial results in years.

That is until Noah discovered something. A force that could store information within energy, regardless of the form that the energy took. While they weren't sure if they could necessarily fit a brain into it, that didn't mean that Sebastian wouldn't try until it killed him. After all, if he succeeded, what would death hold over him?

Sebastian developed an obsession with his work and it quickly put a strain on his health and relationship with Noah. One day while Noah was once again about to leave the lab and fruitlessly plead with Sebastian to come home, Sebastian made a breakthrough.

Unfortunately, Noah didn't realize this as the discovery resulted in a fire that destroyed the lab. Noah made it out, but Sebastion was nowhere to be found.

Days later, as a salvage team swept through the remains of the laboratory, Noah sat in the rubble that used to be his companion's office. He sat in silence until he saw a flicker of light from under a small chunk of the roof. Noah sighed as he picked up a fire extinguisher and snuffed out the small flame, he turned to sit back down until he saw Sebastian's unburnt desk. Upon further investigation, Noah found that the words "I'm here" were charred into the smooth wood desk as a small flame lit up to his right.

Appearance

Noah wears a grey black hazmat-like heat suit but a bit more form fitting. A small bright orange reactor is visible on the back of the suit, vents appear at several points on the limbs and shoulders, emitting a feint orange glow. On Noah's right thigh is a rack of sets of sleek metal throwing knives while on his left forearm is a holster that can store one of those sets at a time.

General

Role: Support

Specialization: Area denial, anti-cc

Health: 200 normal

**Movespeed

... keep reading on reddit ➑

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πŸ‘€︎ u/Oryyyyx_with4ys
πŸ“…︎ May 07 2021
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Phlogiston [22x22] [2048x2048] [OC] [Battlemap] [Space] [Stars] [BBEG] A place for your BBEG to wreak some havoc!
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πŸ“…︎ May 31 2021
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TIL before the theory of oxidation explained fire, we thought objects contained an elusive substance called "phlogiston". When items burned, they underwent phlogistication, and the remaining ash was simply dephlogisticated material. britannica.com/science/ph…
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πŸ‘€︎ u/StrainIsStressful
πŸ“…︎ Dec 09 2020
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Giff, Guns and Phlogiston

So, the only D&D setting, where existence of firearms doesn't make much sense to me is Spelljammer.

Phlogiston is absurdly flammable. Firearms create fire. Giff use firearms (not some weird non-fire based version), often absurdly big firearms.

It may not have much issue in Wildspace, but in Phlogiston ship fight - as I understand it - Giff ship would explode the moment somebody would fire the first shot... or somebody would land a particularly lucky hit on their ship. Or improperly stored gunpowder may spontaneously catch fire...

So, how Giff or guns are still a thing in Spelljammer?

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πŸ‘€︎ u/WickedAdept
πŸ“…︎ Feb 13 2021
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Floating in the Phlogiston?
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πŸ‘€︎ u/ArrBeeNayr
πŸ“…︎ Apr 01 2021
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Phlogiston [22x22] [2048x2048] [OC] [Battlemap] [Space] [Stars] [BBEG] A place for your BBEG to wreak some havoc!
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πŸ“…︎ May 31 2021
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Fan theory: firebending works "without fuel" because this is a universe that follows phlogiston theory, and there is a phlogistonic gas in the atmosphere

Phlogiston theory says that things burn/rust because of a fire-like element "contained within combustible bodies and released during combustion" (Wiki). A gas widely dispersed in the atmosphere having this property would make firebending without fuel possible, as firebenders could just use their chi to ignite the phlogistons in the air the way other benders use their chi to manipulate energy. The sun is the source of the energy used to ignite the phlogistons as the moon is the source of the tidal energy used to manipulate water.

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πŸ‘€︎ u/SlowCook219
πŸ“…︎ Oct 22 2020
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For other examples of theories providing surface-level descriptions of the subject yet inadequately explaining the underlying mechanic check out 'Phlogiston theory'
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πŸ‘€︎ u/bobekyrant
πŸ“…︎ Jul 12 2020
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What does traveling through the Phlogiston look like?

I can visualize space and what sailing through it might look like. But what does sailing through the Phlogiston look like? Is vision limited at all?

Are the Flow Rivers visually noticeable?

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πŸ‘€︎ u/longforliberty
πŸ“…︎ Mar 01 2021
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Do any creatures live in phlogiston?

Specifically, I'm wondering if there are any particularly high-powered foes that wish to eat/destroy/invade crystal spheres.

I've got a campaign that's involved with a small crystal sphere that's in the process of breaking, and something has been talking to them through the cracks, trying to get in. I'm just wondering if there's anything in canon that could fit that.

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πŸ‘€︎ u/Ryhepagima
πŸ“…︎ Jan 14 2020
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Phlogiston and Cannons

So I am prepping a spell jammer session. I feel like I have a pretty good handle on things, but I'm trying to process black powder weapons. While in the flow, the casters can't carry for based spells, so logically, should cannons be banned during fights inside the flow???

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πŸ‘€︎ u/bucketheadklunk
πŸ“…︎ Jan 13 2021
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Need a wildspace/phlogiston-faring civilization

The government my PC's think is the BBEG is secretly trying to deal with a civilization of space invaders. I'm having trouble wading into SJ lore. There's so much and I can't find an approachable database. Can anyone recommend me a species, please?

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πŸ‘€︎ u/satyestru
πŸ“…︎ May 14 2020
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Phlogiston magic system idea

Phlogiston is a substance conceived by the scientists of 1600s to 1700s and widely believed to be the reason why substances burn. Now the theory is abandoned by today's scientific community as this theory was proven false. Now how this substance works is that all flammable objects contain a substance called phlogiston, which was released when the object burned. I was thinking of having the magic user to have the ability to absorb phlogiston and infuse phlogiston into objects. When a certain amount of phlogiston is infused with the object, the object will combust. In other words, this magic can set things on fire. Please improve this idea and turn this into a fully developed magic system.

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πŸ‘€︎ u/StarmetalForge
πŸ“…︎ Nov 23 2020
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Is the Phlogiston (Spelljammer) copyrighted?

I would like to write a sci-fi fantasy novel in wich people use the Phlogiston to travel (although I won't be using the cristal spheres). I would like to know if the Spelljammer's Phlogiston traveling system is copyrighted before I implement it in my story

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πŸ‘€︎ u/jaycomZ
πŸ“…︎ Dec 02 2020
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Cross-section of homebrew spelljammer-ish inter-planetary ocean, showing how a crystal sphere is held up by great mountains rising up from the bottom of the phlogiston ocean, where lie the ruins of the forgotten time
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πŸ‘€︎ u/adammichaelwood
πŸ“…︎ Jan 19 2021
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The Rise and Fall of the Phlogiston Theory of Fire encyclopedia.com/science/…
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πŸ‘€︎ u/canadian-weed
πŸ“…︎ Feb 06 2021
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The phlogiston theory gets a bad rap lesswrong.com/posts/RgkqL…
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πŸ‘€︎ u/gomboloid
πŸ“…︎ May 14 2020
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Phlogiston in the Realm

So, after Barovia, my team returned to Cormyr. They loved their characters and wanted to keep playing. I'm home brewing quite a bit but am stuck on one plot point. The cleric in the group, had a goal of healing Tilverton Scar from the spell plague. We've adventured to the green elf ruins of Myth Adofaer, in the Vast Swamp, where the cleric found ancient scrolls that detailed how to cure the earth. Part of the ritual requires acquiring phlogiston, my theory being that the over God of creation actually created all of the crystal spheres by ordering/manipulating the phlogiston. My plan was for them to travel to the Feywild, to a port where a Giff who is friends with the gnome wizard, could sail them through the flow in a space jammer ship. They could gather ambient plogiston that seeps through the ships bubble, but I just read that phlogiston disappears in real space. Is it too far fetched to create a magical item that could maintain the integrity of the phlogiston long enough to get it back to Tilverton Scar?

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πŸ‘€︎ u/bucketheadklunk
πŸ“…︎ Apr 21 2020
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Homebrew race - Phlogiston Imbued

https://preview.redd.it/k8pp1ut84hx51.jpg?width=817&format=pjpg&auto=webp&s=9ecdc8bd246e03141effe289d9a5c26346a185c0

Race does get several abilities and while some of them are more niche, it might still be bit too powerful as it currently stands. I would say that the big items are currently darkvision, unending breath and subjective gravity, rest are more fluff to fill in the idea of race I had in mind.

So please do give me constructive criticsm, feedback and suggestions. Especially better race name ideas are welcome.

I removed the old text, added some fluff and recreated it as a image via Naturalcrit homebrewery. Let me know if you spot any mistakes or have good fluff improvement ideas because this is still very much open to improvement. As an example power level is still another potential issue.

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πŸ‘€︎ u/Tonkku-8656
πŸ“…︎ Oct 18 2020
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Phlogiston Maps

I’m new to Spelljammer. Are all Crystal Spheres supposedly connected by phlogiston rivers? I’ve seen some Spelljammer maps that have some spheres without any connecting phlogiston flow?

I’ve read some flows will take you from a sphere to anotherβ€” but it’s a one way flow. so you can’t go back the way you came.

How would you get to a sphere with no flow. Would it just be like crossing a lake as opposed to a river.

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πŸ‘€︎ u/longforliberty
πŸ“…︎ Sep 05 2020
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Questions about Phlogiston

I have a couple of questions about the flow. From what I have read the phlogiston is extremely flammable, and a single match could take your hand if struck within this air. So first question:

Does a lit match explode if lit within a ship? Given that a ship travels with its own air pocket the phlogiston would have to displace this air in order to actually enter and do its thing, but if this is so then everyone would slowly petrify or however it is described when you fall off your ship. I understand the most obvious answer is magic, and the 2nd most obvious would be that a small amount of phlogiston permeates the pocket making the oxygen much more flammable, but is there a different answer, or have I understood the flow wrongly?

The second question is about mechanics. If a fireball is thrown within the phlogiston, it would explode on the spot it appears not the target. However how much bigger and how much more damage would this do?

Final question, is the flow somewhat solid or liquid. From every description of the phlogiston, I understood it as a sort of gas, but I realized that for combat the ships use ores and sails, which require either a medium to push against with the ores or a medium that propels the ship for the sails. Is there something I am not getting? Are those systems just used within spheres, and if so how would they work?

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πŸ‘€︎ u/jomacatopa
πŸ“…︎ Sep 26 2020
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Phlogiston, by headroom hedrom.bandcamp.com/album…
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πŸ‘€︎ u/Isaac_Ascii
πŸ“…︎ Aug 12 2020
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Need a wildspace/phlogiston-faring empire

While the PC's are fighting the government they currently think is the BBEG, another race is invading from the stars. I was going to use spell weavers, but 5e conversions I've found are CR 10 or 12 - difficult to fight in numbers! So I need a less individually powerful, but still formidable, advanced civilization - possibly from Spelljammer or Planescape, but preferably not mind flayers, which I feel have been done enough. Any ideas?

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πŸ‘€︎ u/satyestru
πŸ“…︎ May 14 2020
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Weird 6am lore question: can you circumvent your normal maximum spell level if you are in the phlogiston/not in a planetary sphere?

I got way too deep into watching lore videos on dnd and have seen a shit-ton of them, and I've learned that intense "universe breaking" spells (aka +10 level spells) can't be cast solely because Mystra the goddess magic will detect your misuse of the weave and prevent it. I also watched a video which claimed if you are outside of a planetary sphere/solar system that the gods have no influence whatsoever. So if someone somehow got his hands on some forgotten spells or created some himself, could they say....use a spell like Karsus's avatar or something of that vein? Asking for a friend...

I'm not the most advanced dnd player so forgive me if I'm missing something obvious

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πŸ“…︎ Feb 01 2020
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Does Phlogiston enter the air envelope and cause fire issues?

I'm a new DM (5e only) and I wanted to bring spelljammer ships into my homebrew campaign setting. I have read a couple of different rule conversions to 5e for Spelljammer but I am a little confused about this:

So if a ship has an air envelope around it but is travelling through the Phlogiston, would you rule that air and Phlogiston are mixed and fire spells do extra damage (and bad consequences) or does the air envelope keep the Phlogiston out (and fire only does extra damage outside the air envelope?

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πŸ‘€︎ u/phage10
πŸ“…︎ May 09 2021
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[Battlemap][100x100][2048x2048][Spaceship] The Phlogiston Explorer

In Space No One Can Hear You TTRGG!

I wanted to try an create a (hopefully) believable looking space ship with the Fantasy Battlemaps 2.0 assets, in the program Inkarnate. There is a bridge, captain's quarters, crew quarters, galley, bathroom, washroom, engine room and two weapons turrets, etc, or at least rough approximations of such!

Free to clone, edit, download and use if you so wish!

https://inkarnate.com/m/5qJ8Qv--the-phlogiston-explorer/

#DnD #inkarnate #DnDmaps #DnDinspace #battlemap

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πŸ‘€︎ u/visionflow
πŸ“…︎ Sep 07 2021
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