“At one point, Christopher Columbus fed a live child sex slave to dogs.”

This led to extensive cannibalism, including many recorded cases of parents eating their children.

R3ddittor

2.

A gruesome horrific gravesite

Unsplash / Rubén Bagüés

Their heads were decapitated and loaded into cannons

The Great Siege Of Malta.

Mustafa had the bodies of the knights decapitated and their bodies floated across the bay on mock crucifixes.

Fakezaga

3.

A gruesome horrific gravesite

Unsplash / Rubén Bagüés

The ships got caught in the ice and therefore stuck there forever.

I however think the real story is creepy in its own right.

AMC is making it a series as well, named after the ship; The Terror.

Its directed by Ridley Scott, so its bound to be unnerving.

FreePhilly

4.Scientists conducted unethical experiments, like cutting a fetus out of a mother

Unit 731.

Not nearly as many deaths as the Holocaust, but I think it should be just as infamous.

The things those innocent people were subjected to made me want to vomit just reading about without pictures.

And Im pretty sure thats some of the tamer stuff.

And they didnt do these things for any other reason than that they were curious what would happen.

He exchanged all of his research for escaping punishment for his horrible crimes against humanity.

davisbobavis

5.Soldiers raped and tortured thousands of innocent people

The Rape of Nanking.

Japanese soldiers,killed, tortured, and raped thousands of innocent Chinese people.

Forced incest rape, genital cutting, real fucked up shit like that.

ThatGuyYouKnow905

6.

He blew up a school, which killed multiple children

The Bath School disaster in Michigan.

In 1927, man by the name of Andrew Kehoe lost a seat for a treasury position.

In retaliation, he blew up a school and killed quite a few children and some staff.

He was an electrical engineer, and suffered a head trauma that may have caused his insanity.

IFudgedTheMath

7.

Silly_Bun

8.

FuzzyMeep7

9.

Their hearts were torn out while still alive

The Aztecs performed acts of massive human sacrifice of slaves.

In one such event over 10,000 slaves had their hearts torn out while still alive.

The blood permanently stained the piramide.

deroque

10.

He was courting a pretty girl who had been sent there.

They were hungry, they had to eat.

When Kostia came back, she was still alive.

He tried to save her, but she had lost too much blood.

Spinner1975

11.

The whole town was set on fire, resulting in mass suicides

The Demmin Massacre.

finnhorse

12.

The Irish Famine is actually considered a genocide by many people

The Irish Famine wasnt a Famine.

Its also thought to be an inspiration for Bram Stokers Dracula.

Ahandyhand

13.

As everyone knows, that launch failed because an O-ring in one of the SRBs failed.

FallenShadow1000

14.

Policemen and firemen could do nothing but watch them fall.

howmuchisabrazilian

15.

Children were forcibly removed from their own homes

The Sixties Scoop.

Many people have read about the residential school system in Canada, which is brutal on its own.

There is no mention of this in any Social Studies class.

It seems Canadian kids are not taught about this.

level3elf

16.

She was denied medical care until the next morning.

All because they dared ask Woodrow Wilson to allow them to vote.

Sheairah

18. germ304

19.

By comparison, the death toll for the First World War was ~18 million.

ButtTickla69

20.

Despite the fact that a cure was readily available?

Oh, and how it continued until 1972?

Junko__Enoshima

22.US Army troops attacked US veterans

The Bonus Army.

chileheadd

23.

More than a million people were hacked to death by machetes

Rwandan genocide, it lasted 4 months.

Four fucking months and 1,000,000+ people died.

Most died from being hacked to death by machetes.

Mumtaz3580

24.

Many people dont know that these kidnappings continued through the 1940s.

For weeks, she didnt know what happened to them or where they had gone.

They had been taken to a boarding school.

Shes still terrified of the dark almost 80 years later.

Raindrops1984

25.