I don’t see the civil wars in Liberia and Sierra Leone mentioned very often. Child soldiers were forced to [unalive] their families, sexually abused, d***ged, taught to drink human blood and sever limbs. And it was all basically for nothing. Most of the militias didn’t really have political loyalties or even an end goal. It was just mass insanity. Children as young as seven were literally torturing, [ending] and eating people, and now they’re adults having to live with that and reintegrate into normal life.

DustierAndRustier , United States Army Africa Report

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The slaughter of Native Americans. The saluter 96% population drop (1492–1900) > +4 million (est. 1492-1776); 350,000 (58% population decline from 1800 to 1890);.

Previous-Tangelo9471 , Unknown author Report

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The worst atrocity in human history wasn’t a single act but the slow unraveling of our own compassion. Every time we turned a blind eye to suffering—from the known genocides to the uncountable injustices we witness daily—we allowed humanity’s darkest impulses to fester. It’s not just the big moments that haunt us; it’s the every day decisions we make to overlook the pain of others that is the true horror of our existence. Let’s not just remember history; let’s vow to change the narrative tomorrow.

halladrigummy4 , Andrew Neel Report

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Leopold II of Belgium. Monster.

Edit: Sorry, I did not actually answer the question correctly. It should have been:

The [unaliving] of fifteen million Congolese by Leopold of Belgium. Monster.

longleggedwader , Louis Gallait Report

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The near extermination of the bison population during the 1800’s. This was not only caused by Western expansion but the bison were directly targeted to weaken Native American resistance in the region and force them onto reservations. The bison population dropped to ~300-500 from ~30-60 million and next to disease probably caused the most deaths among the Native American tribes.

WhiteCheddaMan , Thomas Fields Report

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The Holodomor. Not in absolute terms the worst, but a reminder that Russia has never given up on its genocidal ambitions towards Ukraine.

AchillesNtortus , Alexander Wienerberger Report

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So many atrocities throughout history; Mao’s Great Chinese Famine probably took the most lives in recorded history:
between 20 and 55 million [people died], with the most common estimate being 30 million.

Trumpswells , Unknown author Report

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During World War II, Japan’s Unit 731 conducted horrific human experiments as part of biological and chemical warfare research. Thousands of prisoners, primarily Chinese civilians and POWs, were subjected to deadly tests, including deliberate infection with diseases like the plague, frostbite exposure, live dissections without anesthesia, and weapon testing. These experiments aimed to understand disease progression and push the limits of the human body but resulted in severe suffering and loss of life.

No_Cow7073 , 松岡明芳 Report

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Plenty of WWII mentions already, so I will mention Argentina's "Dirty War"

Among other things, a lot of babies were stolen from political opponents, and a lot are still being discovered today having been raised by their parents' killers.

Technicolor_Reindeer , Giselle Bordoy WMAR Report

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Two words: gas chambers.


They knew they were going to murder so many people that they looked for the most efficient method possible.

ReebX1 , Jolanta Dyr Report

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As someone who visited Cambodia, seeing the Killing Fields firsthand changed me. There's this tree they used to kill babies by swinging them against it. I still can't process how humans could do that to their own people.

EroticLadyxv , Jwslubbock Report

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There are a lot of interesting answers here, and that's mainly because humans do a lot of terrible things to each other. That said, my answer is the Rwandan Genocide.

For those out of the loop, the Rwandan Genocide began on April 7, 1994 and lasted around 100 days. Tensions between ethnic groups (Hutu, Tutsi, and Twa), which had been boiling since the days of Belgian colonialism and led to several previous conflicts, finally boiled over when a Hutu leader was [unalived]. Hutu extremists, who had been whipped up with ultranationalist and racist propaganda and had been preparing this for some time, began rounding up their Tutsi neighbors, coworkers, and even friends and [unaliving] them.

There were no concentration camps. There were no mock trials. There was no war to hide these atrocities. People were simply taken from their homes, jobs, or cars and hacked to death with machetes. The Twa, primarily rural farmers, had their homes and farms burned to the ground. Tutsi women and girls (as well as Hutu women who married Tutsi men) were gang r***d by organized "r**e squads," almost all of whom were HIV positive. When the Hutu militias were stopped, almost 600,000 people were [dead]. Another 2 million people were displaced and life expectancy plummeted. In the aftermath, Rwanda's government implemented strict laws regarding the broadcasting of certain language, as much of the genocidal ideology had been spread through Hutu supremacist radio stations, and many of these laws are still in place today.

saxophonefartmaster , Adam Jones Report

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Comfort women. From 1932 to 1945, Japanese imperial armed forces forced women from all over the world to be sex slaves in korea and surrounding areas. Japan still denies it ever happened today.
I found out about it from watching a kdrama called Tomorrow.

flamingo_button , Lemon A E (Sergeant) Report

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Slave trade, hard to choose which era.

RolloTony97 , Marc Ferrez Report

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Stalin's Great Purge. God knows how many people [died] all for the paranoia of one man.

HolyKlickerino , Franklin D. Roosevelt Library Report

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The atrocity of Palestine. Why is no one mentioning that?

+78 years and counting of ongoing illegal colonialism and occupation.

Within that, there's the massacre of Tantura, a little town there. There's a documentary about it if anyone's interested. The veterans were saying that they [unalived] Arab women and children with machine guns while laughing.

That, and many other horrible crimes under those 78 years.

What's happening there right now is a complete genocide aiming to decimate that place off of the face of the earth with the people in it.

asrdo , Benno Rothenberg /Meitar Collection / National Library of Israel Report

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The R**e of Nanking. Read the book on it earlier this year and I'm usually unphased by talks and videos of death, torture, and gore but that book... The kind of stuff they thought up doing to their victims was abhorrent and unbelievable.

Some of the worst things I remember were

>The [ending] of families including the women and infant children, forced incest of fathers to daughters, sons to mothers... People hung on meat hooks by their tongues...Cutting out an unborn late trimester baby from the mother and [unaliving] it in front of her.

UniDiablo , China Incident Photograph Album Volume 2 Report

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Colonization of Africa. Probably not the worst necessarily, but one with massive and far reaching implications.

An entire continent set back for generations socially, culturally, and economically.

Grouchy_Ad_6202 , John Thomson Report

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*Carthago delenda est*.

Rome wiped one of the great civilizations of the Mediterreanean off the map and salted its ruins so that it could never come back. 'Total war' taken to the furthest extreme.

People citing the R**e of Nanking here reminded me of Romans spending 7 whole days to [unalive] every living thing in the city.

afxz , wikipedia.org Report

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The Armenian genocide.

Fun-Rush-2329 Report

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Ghengis khan killed so may people during his life that he is responsible for a noticeable CO2 decrease in the global ice record.

WrensthavAviovus , Unknown author Report

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Diego de Landa burning the Mayan culture.

LoveDistinct , Unknown author Report

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The German invasion of the Soviet Union which caused 20 million civilian deaths in a few years is certainly a contender.

MythDetector , Unknown author Report

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The battle of the Somme was pretty horrific.

Recent_Obligation276: Brit’s took 57k casualties on day 1. For perspective, the US, in 20 years of war in the Middle East post 9/11, only took a little over 20k casualties.

Educational_Ratio_97 , John Warwick Brooke Report

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Everybody forgets about the Taiping Rebellion when the self proclaimed Chinese Jesus started a conflict that [ended] upwards of 30 million people.

custard_caramel: Chinese civil wars were full of war crimes. Soldiers would target farmers to starve out the enemy troops.

hoosierhiver , Ford & West Lith Report

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World War 1.

I had a teacher refer to it as “the meat grinder,” and I’d say it’s pretty accurate. It basically used those young men as an experiment on how to [unalive] people more efficiently, and it’s a war we still live in the trauma of. A brutal bridge into the 20th century.

QuickRelease10 , Unknown author Report

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The German [unaliving] of Jews during WW2. Millions dead.

CrossroadsBailiff , Bernhard Walter - Yad Vashem Report

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Any and all acts commited by the Ustaše or the Khmer Rouge.

If you know what the people in those two organizations did, then I think I said enough. If not, then feel free to do research on them; but let it be known that you won't feel well afterwards.

TheShadowbeater Report

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Siege of Bagdad. It was said that the streets ran yellow with human fat that melted from the heat. 1 million were [unalived] over a couple of days.

Disastrous-Net4003 , Sayf al-vâhidî et al Report

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The Rwanda genocide. The perpetrators and the world which abandoned Rwandans to their deadly fate for 100 days are unforgivable.

MarciaGrey254 , Dylan Walters Report

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