What did you get wrong?

Myths, lies, and things your teachers believed too.

Your Personal Report Card

A

What this is

An encyclopaedia of things humanity got spectacularly wrong. Myths your teachers taught with confidence. Medical advice your doctor used to swear by. Playground rumours that ran the schoolyard for a decade. Mandela effects most of the country shares. Conspiracy theories that fall apart on the third question. Australian tall tales we still half-believe ourselves.

Every entry has the wrong claim, why it sounded right, what's actually going on, and at least two real sources. We're not here to make anyone feel stupid. We believed most of these too. The whole point is that knowledge moves forward, sometimes embarrassingly, and noticing the moments it does is more interesting than pretending it doesn't.

πŸ’‘ Fact of the Day

Think you know better?

10 questions. True or false. No Googling. Find out if you're smarter than your Year 10 textbook.

Take the Quiz

Browse by Subject

Pick a topic. Prepare to be disappointed in your education.

Most Believed (and Most Wrong)

The greatest hits of human gullibility. You believed at least half of these.

Debunked Fact astronomy

Pluto Is a Planet

Pluto reclassified as a dwarf planet in 2006

πŸ‘ 10/10
⚑ 8/10
Playground Myth psychology

Stepping on a Crack Will Break Your Mother's Back

A superstition with no magical consequences whatsoever

πŸ‘ 10/10
⚑ 3/10
Playground Myth biology medicine

If You Shave, Your Hair Grows Back Thicker and Darker

Shaving creates the appearance of thicker hair, but doesn't change growth

πŸ‘ 10/10
⚑ 6/10
Conspiracy Debunked medicine biology psychology

The MMR Vaccine Causes Autism

Andrew Wakefield's fraudulent 1998 Lancet paper was retracted after fabrication was exposed

πŸ‘ 10/10
⚑ 9/10
Mandela Effect pop-culture psychology

Darth Vader Says 'Luke, I Am Your Father'

The actual line is 'No, I am your father' without using Luke's name

πŸ‘ 10/10
⚑ 10/10
Mandela Effect pop-culture psychology

The Berenstein Bears Are Spelled 'Berenstein'

The author always spelled it 'Berenstain' (rhyming with 'stain,' not 'steen')

πŸ‘ 10/10
⚑ 10/10

Browse by Type

From playground myths to conspiracy theories. We've sorted the rubbish so you don't have to.

Curated Collections

Handpicked sets of wrong facts for specific moods and occasions.

Start typing to search 553 wrong facts