10 Facts You Learned in School That Are No Longer True

Pluto is a planet

 When most of us were in school, we were taught that our solar system has nine planets, and Pluto was one of them. However, in 2006, the International Astronomical Union (IAU) redefined the definition of a planet, and Pluto no longer qualified.

Dinosaurs were not all giant lizards

 Dinosaurs were a diverse group of reptiles that varied greatly in size, shape, and behavior. Some were as small as chickens, while others were as large as buildings.

Humans did not evolve from chimpanzees

 While humans and chimpanzees share a common ancestor, they are separate and distinct species that evolved independently of each other.

The tongue does not have specific taste regions

The idea that different areas of the tongue detect different tastes (e.g., sweet, salty, bitter, etc.) is a myth. Taste buds are distributed throughout the tongue.

The Great Wall of China is not visible from space

 Contrary to popular belief, the Great Wall of China is not visible from space with the naked eye. It is visible in low Earth orbit, but so are many other man-made structures.

The earth's magnetic field is not static 

The earth's magnetic field changes constantly over time due to factors such as solar activity and movement of the earth's molten iron core.

Napoleon Bonaparte was not short

While Napoleon was not tall by today's standards (he was around 5'7"), he was of average height for a man of his time.

Blood in veins is not blue:  

Blood in veins appears blue through the skin, but it is actually dark red. The blue color is an optical illusion caused by the way light travels through the skin.

Vaccines do not cause autism

Multiple studies have found no link between vaccines and autism, despite the persistent myth that they are somehow connected.

Christopher Columbus did not discover America:

While Columbus is often credited with "discovering" America, the land was already inhabited by indigenous peoples who had their own civilizations and cultures.

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