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

The Library of Alexandria wasn't destroyed in a single fire — it declined gradually over centuries due to neglect and underfunding.

Banksy, the anonymous street artist, has never been definitively identified despite decades of speculation.

The gig economy has grown dramatically — in the US, over 36% of workers participate in some form of freelance or gig work.

Jim Thorpe won the pentathlon and decathlon at the 1912 Olympics — King Gustav V of Sweden called him 'the world's greatest athlete.'

The Magna Carta influenced later democratic principles.

Synchronized swimming, now called artistic swimming, requires athletes to hold their breath for up to 3 minutes while performing choreography.

Particles can exist in multiple states until observed.

Video game revenue surpassed film and music revenue combined for the first time in 2019.