Olympic weightlifters can lift more than twice their body weight overhead in the clean and jerk.

The mathematical constant tau (τ = 2π) is championed by some as more natural than pi for describing circles.

Ancient Greek athletes competed naked in the original Olympics — the word 'gymnasium' comes from the Greek for 'naked.'

The fastest recorded serve in tennis by a woman is 220 km/h by Georgina Garcia Perez.

The world record for the 100m dash has dropped from 10.6 seconds in 1912 to 9.58 seconds today.

Reading a physical book before bed improves sleep quality more than reading on a screen.

Operation CHAOS gathered intelligence on domestic protest movements in the 1960s.

In 1904, an Olympic marathon included bizarre obstacles and poor organization.

The Roman festival of Saturnalia — involving gift-giving, feasting, and role reversals — influenced Christmas traditions.