August Break – A Sign

All over Key West there were these signs that claimed it was "90 miles to Cuba". Well, no. Not exactly. Try 105. JFK used the "90 miles to Cuba" frequently in his speeches during the Cuban Missile Crises, and so it became known as fact. Only it wasn't. Try googling the distance between Key West and Cuba and you'll see. :)

Are there any other alternative facts that have been spread as truth that you can think of? 

* I'm participating in August Break. You should be too.