The most push-ups done in one hour is 2,919.

Light behaves as both a particle and a wave simultaneously — this is called wave-particle duality.

Beethoven continued composing after going completely deaf, writing his Ninth Symphony while totally deaf.

Particles can exist in multiple states until observed.

In Aztec mythology, the sun and moon were created when two gods threw themselves into a fire at Teotihuacan.

Jesse Owens won four gold medals at the 1936 Berlin Olympics, directly challenging Hitler's ideology of Aryan supremacy.

The Reformation reshaped religious life across Europe.

The modern triathlon — swim, bike, run — was invented in California in 1974 as a way to settle debates about which sport produced the fittest athletes.

Photography was originally called 'sun painting' — the word comes from Greek for 'light writing.'