@WatchMojo

Which mistake do you think left the most lasting impact? Share in the comments. 
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@paballomolata8844

You should add the Art school who rejected Evil Charlie Chaplin

@lindalou6808

I remember when the German wall fell. I cried when we watched it on TV. It was humanity triumphing over evil. It was a world wide event of hope.  Years later, we had a German au pair. She gifted us a piece of the wall. She didn't realize how much her gift meant to me.

@Jeremiah_Rivers76

Not all mistakes can change the world for the worse. Some errors can have positive outcomes, like Fleming’s bacteria study that led to penicillin.

@melonking9752

Austria-Hungary sent ultimatum to... Siberia? Shouldn't that be Serbia?

@KimberlyLetsGo

The man that assassinated the Archduke was only 19 years old. A teenager started the ball rolling of WW1.

@TheWarmachine375

"History is written by the victors. History is filled with liars. All it takes to change the world is one good lie and a river of blood." - Captain Price

@czguy3045

21:38 Did she say Siberia? Pretty sure no ultimatum was sent to Siberia concerning WWI.

@mybusiness4329

The Austrian-Hungarian Empire threatened SERBIA leading to the start of WW1 not Siberia.

@timlowdon2943

I like how the Julius Caesar entry is bassed 100% off of the Shakespeare play and not actual history.

@KiwiAustralian

20 TIMES WE IGNORED SCIENTIST WHO WERE RIGHT. To our detriment. There are so many.

@minxythemerciless

The reparations after the Great War cost Germany 2.5% of GDP. Compare that with the reparations after the Franco-Prussian war which cost France 23% of GDP. Germany got off incredibly lightly by the standards of the time.

@irawilliams343

Just goes to show how amazing human stupidity can be

@qrow7215

The burning of the Baghdad House Of Wisdom in 1258 cost humanity thousands of years of written accounts, knowledge and history that will never be recovered and the monk who wrote prayers on a page of previously undiscovered mathematics set humanities knowledge of maths and science back about 800 years

@raiznsisig

Alexander Flemings "happy little accident" really changed the world... haha

@seanmalloy7249

The design of the Titanic to remain afloat with up to four flooded compartments was rendered worthless by the fact that the watertight bulkheads did not extend all the way up the hull; as a result, as the flooding made the ship settle by the bow, the flooding of the first compartment overtopped the first watertight bulkhead, water rushing into the second, and then repeated down the ship until it exceeded the reserve buoyancy of the vessel. The clip shown from the movie clearly shows a side-view blueprint showing where the watertight bulkheads ended, several decks below the main deck.

@tronicman1

Why should Franz Ferdinand's drivers understand czech in Sarajevo? They speak Serbocroatian there.
And Austria-Hungary sent their ultimatum to Serbia, not Siberia. 
Good grief!

@user-um1yl9pj1b

Grew up watching Mysteries At The Museum it's crazy how so many events throughout history could've been avoided with just a simple action or words.

@matthew.wildsmith

I think turning The Titanic to starboard was a perfectly rational and logical decision. Officer Murdoch obviously thought there was enough time to turn and miss the iceberg. With the gift of hindsight, we now know differently.

@MarkReadPickens

17:58 "The Germans' most accomplished general, Elvin Hommel..."  I wonder if he was any relation to Erwin Rommel.