History ApocalypseHow / Class1

* ''Film/{{Interstellar}}'' is Class 1 turning into a Class 2, as failing crops endanger the survival of the human race.

* Thanks to the lack of canon in Wiki/SCPFoundation material, any SCP subject could cause this or worse if it breaks containment. SCP-6004, for example, decimated global civilization and restored much of the environmental destruction wrought by human encroachment on nature when it woke up, and now the Foundation works with national governments and other anomalous organizations to limit activity that would reawaken it.

** "[[Recap/DoctorWhoS30E11TurnLeft Turn Left]]": In the BestOfAllPossibleWorlds style AlternateTimeline, without the Doctor around to save the world, the crises escalate into this over the course of less than two years. Britain ends up under martial law with the whole of England flooded with radiation after the ''Titanic'' obliterates London, the many who are displaced from this are crowded into designated houses, and eventually the "[[ANaziByAnyOtherName England for the English]]" Law gets passed. Nevermind France closing its borders after getting overwhelmed with refugees, or sixty million of America's population getting turned into Adipose.

* The psychodelic "The Day The World Turned Day-Glo" by X-Ray Spex is a borderline case. Possibly the singer Polly Styrene only refers to our modern plastic world? In any case, [[http://chi-ting.blogspot.de/2013/07/the-day-world-turned-dayglo.html this blogger]] used it as a title for his apocalyptic thoughts about a nuclear plant in India.

* ''[[Literature/NineteenEightyThreeDoomsday 1983: Doomsday]]'', a timeline from the [[http://althistory.wikia.com/wiki/Main_Page Alternate History Wiki]], is set in a world where a nuclear war occured in the early eighties. Most of the nations in the Northern Hemisphere cease to exist, yet the survivors manage to establish new states in their wake. The Southern Hemisphere, meanwhile, escapes mostly unscathed.

* Earth after the Zentraedi attack in ''Anime/SuperDimensionFortressMacross''/''Anime/{{Robotech}}'' is around a 1.5: while most of humanity is killed off by a brutal orbital bombing, the survivors and the residents of the SDF-1 were able to repopulate though the help of cloning (which at one point accounted for more than 90% of the human population). Humanity also has plenty of advanced technology acquired from alien sources, and civilization is shown to recover both in the later ''Anime/{{Macross}}'' series such as ''Anime/MacrossPlus'', and in the ''Masters'' and ''New Generation'' seasons of ''Robotech'' (which were [[CutAndPasteTranslation dubbed versions]] of ''Anime/SuperDimensionCavalrySouthernCross'' and ''Anime/GenesisClimberMospeada'' respectively). In fact, thanks to the capture of several automated factory satellites from the Zentradi, humanity in ''Macross'' advances far faster after the catastrophe than it did before it, though civilization on Earth itself still takes some years to recover from the devastation.

** The Usurpation: the whole Solar Exalted ruling class is betrayed by its underlings, which results in decades of extremely violent civil war. Hundred of thousands are slain (both participants and collateral victimes), entire cities are destroyed, and the whole High First Age society collapses

* ''Film/{{Contagion}}'': A worldwide pandemic that spreads about as easily as the flu, and kills about a fifth of the people infected. The US government survives, but things get pretty rough for a while.

* The Thirteen Day War in the backstory of ''Anime/LegendOfGalacticHeroes'' involved a nuclear exchange between the major powers of Earth, which reduced the world's population to 1 billion and some 90 years would pass before order was restored on Earth.

* ''Film/{{Reminiscence}}'': Planetary Scale, Societal Disruption. Mass flooding across multiple continents and while society is still intact it has to live by night to cope with extreme temperatures in the day, could slide into Class 2 or Class 3.

* ''Film/{{Reminiscence}}'': Planetary Scale, Societal Disruption, Mass flooding across multiple continents, society is still intact but it has to live by night to cope with extreme temperatures in the day, could slide into Class 3.

* ''Film/{{Reminiscence}}'': Planetary Scale mass flooding across multiple continents, society is still intact but it has to live by night to cope with extreme temperatures in the day, could slide into Class 3.

* ''Film/{{Reminiscence}}'': Planetary Scale mass flooding, society is still intact but it has to live by night to cope with extreme temperatures in the day, could slide into Class 3.

* ''Film/{{Reminiscence}}'': Planetary Scale mass flooding, society is still intact but it has to live by night to cope with extreme temperatures in the day, could slide into ApocalypseHow/Class3.

* ''Film/{{Reminiscence}}'': Planetary Scale mass flooding, society is still intact but it has to live by night to cope with extreme temperatures in the day, could slide into [[ApocalypseHow/Class3 Class 3]].

* Generally, the more extreme portrayals of WorldWarThree are going to have this as a ''minimum'' outcome.

* The post-WorldWarThree world of ''TabletopGame/{{Twilight 2000}}'' is Class 1, bordering on Class 2. It's clear that humanity has a lot to do, but generally implied that civilisation would rise again. The starfaring game ''2300 AD'' was {{Ret Con}}ned into being a sequel, so this interpretation is more-or-less official.

* In ''VisualNovel/DanganronpaTriggerHappyHavoc'', the backstory of the game involves an incident known as "The Worst, Most Despair-Inducing Event In History" (also known simply as "the Tragedy") that allowed a terrorist organization called "Ultimate Despair" to unleash catastrophic levels of unrest around the world. Later games and spin-offs [[ResolvedNoodleIncident go into more detail as to exactly what happened]], showing that half the human race was rendered BrainwashedAndCrazy by [[OverarchingVillain Junko]]'s MindControl, turning a large portion of the affected into psychotic murderers.

* In ''VideoGame/AMindForeverVoyaging'', the 2071 simulation falls into this class. Your town of Rockvil has become the OppressiveStatesOfAmerica, as the [[CorruptChurch Church of God's Word]] has put a stranglehold on the town, turning it into a religious, totalitarian police state, and higher-echelon Church members are allowed to own slaves; your BrainwashedAndCrazy son Mitchell leads the raid as he arrests your wife Jill for "heresy"; you are suffering all kinds of ElderAbuse; almost all animals have suffered [[ApocalypseHow/Class4 Planetary Multiple-Species Extinction]] due to starvation, neglect, and torture by [[KidsAreCruel religious schoolchildren who treat you like an animal and kill you by throwing stones at you]]; all the water is becoming polluted and undrinkable; food is quickly becoming scarce (and some restaurants are either becoming expensive or reserved only for Church members); strict rationing is in effect for poor-quality food available, since the ration card should not be used twice under penalty of death; [[DisproportionateRetribution innocent people are being brutalized and even executed for minor crimes]], and executions become bloody gladiatorial matches; buildings, churches, parks and a cemetery are becoming either empty or vandalized; [[MoralGuardians and books and all kinds of entertainment are banned or replaced by religious hate films]]. [[FromBadToWorse And it only gets way worse in the 2081 sim...]]

%%This page's examples section is sorted alphabetically. It would be lovely if you'd maintain this, thanks.

* According to Kouta in the ''Manga/ElfenLied'' manga's final chapter, the recent war with the Diclonii was a Class 1, with the bulk of the human race obliterated, but on the road to recovery, although it's likely the human infighting in the wake of the war will drive this into the Class 3 range with mankind truly becoming extinct. The Diclonii themselves suffer their own Class 3 extinction event with possibly three surviving Diclonii at best - all sterile. (Of course, their population was always much smaller than humans’ to begin with.)

* ''Manga/AttackOnTitan'': [[spoiler:[[MillionMookMarch The Rumbling]] is a 1.5-- 80% of the global population is killed off, but humanity is shown to be recovering three years later.]]

* ''Fanfic/KimiNoNaIowa'': The abyssals' stated goal, the genocide of Japan and the USA, combines this with '''Regional Species Extinction'''. The death of almost half a billion is, from a purely numerical perspective, definitely survivable for humanity, but the cultural, economic and scientific losses will continue to be felt for years if not decades to come, to say nothing of the security implications of America ceasing to exist as world policeman. The addition of the other nations named in the VillainSong in Chapter 31 - Russia, the UK, China, India, and Australia - if they refuse to kowtow to the abyssals and help destroy Japan would elevate the damage to the equivalent of '''Continental Species Extinction''' if not low-level '''Planetary Societal Collapse'''. While the death of around 3 billion still leaves half of humanity alive, enough survivors to meet minimum viable population and avoid inbreeding and genetic drift, the loss of China alone and its leading industrial capacity would put the rest of the world in a bad place or even outright regress it, never mind the destruction of the other named nations. By this point, what else the abyssals have hit, including much of Western Europe and Southeast Asia, is merely an ugly cherry on top.

* In the series finale of ''Series/{{Leverage}}'', {{Inspector|Javert}} Sterling says that [[InterpolSpecialAgent Interpol]] is [[spoiler:refusing to prosecute the culprits of the 2008 financial crisis]] to avoid one of these - a global economic crash - due to lack of faith in international finance.

** ''Series/StarTrekDiscovery'' begins season 3 with [[spoiler:the crew of the ''Discovery'' ending up in the 32nd century, where a mysterious event known as "the Burn" caused a vast majority of dilithium crystals, the power source needed for warp travel, suddenly exploding. This causes the Federation to practically collapse on itself.]]

* New Zealand-based family drama ''Series/TheTribe'' - a government project into anti-aging goes wrong and the resultant virus wipes out all adults in the world. Although the surviving children resort to small insular tribes and anarchy rules periodically from then on, enough knowledge survives in books that technologies can still be slowly rebuilt by those who are smart enough, making this a solid Class 1. Its sequel series, ''Series/TheNewTomorrow'', takes this much closer to a Class 2 as society had regressed further to a pre-industrial, agricultural society (except for the Barbs, who are hunter-gatherers) - presumably then, the attempts made in ''The Tribe'' to rebuild our technological society did not take for one reason or another...

* Almost voiding the DownerEnding of its prequel is ''VideoGame/DeadRising2'' - it's quite clear that the ZombieApocalypse has come and gone, but thanks to the government being actually competent, civilization itself has endured quite nicely and the outbreak hasn't really knocked people back significantly - there's even a RealityShow based around it. This, combined with a way to actually ''fight'' the infection means that the epidemic will probably end with humanity on top (admittedly, it's going to take a while...)

* About 74,000 years ago, the supervolcano at Lake Toba erupted, creating a volcanic winter that reduced the human population to within hailing distance of extinction — as few as 10,000 breeding pairs. The resulting genetic bottleneck has been demonstrated by genetic studies. A similar eruption happening now would fit quite comfortably into this class (or possibly even Class 2).
* There are a number of Supervolcanoes on Earth and we get approximately one big eruption every 100,000 years. One example is the Yellowstone supervolcano, which could cause a Class 1 event for America thanks to the spread of lava and ash, and possibly even cause another Ice Age if the ash stays in the atmosphere long enough. [[FridgeHorror While the Yellowstone supervolcano]] [[OhCrap is overdue for an eruption]], it's showing no signs of doing so (we would know months in advance thanks to seismic activity) and may never erupt again - but don't be disappointed, it's only the 21st most dangerous volcano in America.[[note]]That honor goes to Mt. Kīlauea in Hawaii according to the US Geological Survey[[/note]]

* ''Anime/Danganronpa3TheEndOfHopesPeakHighSchool'' covers the events that lead to the current state of the world in the games. Thanks to the machinations of Junko Enoshima at Hope's Peak, society collapsed in on itself, creating a world of despair and suffering. The Future Foundation works to stabilize everything, though only by the very end does the Tragedy finally come to its conclusion and humanity can begin to repair itself.

* In ''VisualNovel/DanganronpaTriggerHappyHavoc'', the backstory of the game involves an incident known as "The Worst, Most Despair-Inducing Event In History" (also known simply as "the Tragedy") that allowed a terrorist organization called "Ultimate Despair" to unleash catastrophic levels of unrest around the world. Later games and spin-offs [[ResolvedNoodleIncident go into more detail as to exactly what happened]].

* In ''VideoGame/AMindForeverVoyaging'', the 2071 simulation falls into this class. Your town of Rockvil has become the OppressiveStatesOfAmerica, as the [[CorruptChurch Church of God's Word]] has put a stranglehold on the town, turning it into a religious, totalitarian police state, and higher-echelon Church members are allowed to own slaves; your BrainwashedAndCrazy son Mitchell leads the raid as he arrests your wife Jill for "heresy"; you are suffering all kinds of ElderAbuse; almost all animals have suffered [[ApocalypseHow/Class4 Planetary Multiple-Species Extinction]] due to starvation, neglect, and torture by [[KidsAreCruel religious schoolchildren who treat you like an animal and kill you by throwing stones at you]]; all the water is becoming polluted and undrinkable; food is quickly becoming scarce (and some restaurants are either becoming expensive or reserved only for Church members); strict rationing is in effect for poor-quality food available, since the ration card should not be used twice under penalty of death; [[DisproportionateRetribution innocent people are being brutalized and even executed for minor crimes]], and executions become bloody gladiatorial matches; buildings, churches, parks and a cemetery are becoming either empty or vandalized; [[ArsonMurderAndJaywalking and books and all kinds of entertainment are banned or replaced by religious hate films]]. [[FromBadToWorse And it only gets way worse in the 2081 sim...]]

* TheBlackDeath in the fourteenth halved Europe and China's populations, killing an estimated one hundred million people and setting civilizations back by centuries. It took 200 years for the world population to recover to its previous level.

* In ''Series/{{Jericho}}'', 25 of America's major cities have been nuked, including Washington, D.C., dividing the country in three. It's arguable whether this belongs in 0 or 1, because for all we know, the rest of the world could be pretty much okay.