It all started in 1948, when a retired schoolteacher named Eleanor Abbott contracted the disease and ended up stuck in a polio ward in San Diego. Soon the novelty of watching partly incapacitated children cry all day wore off, and Abbott got bored. So to pass the time and distract the children from their loneliness and pain, she grabbed some crayons and sketched out a straightforward board game she called Candy Land. (Please Let Me Sleep, Come On, I've Got Polio Too was already taken.)
The game became popular among the polio-ridden youngsters, which is always a sure sign that you've got a big hit on your hands. Emboldened by this feedback, Abbott later pitched the game to Milton Bradley, who in a keen business move omitted the "It's for children with polio!" part from the marketing materials.
Candy Land remains a favorite to this day. They might even make a movie out of it, possibly starring every child's favorite actor, Adam Sandler! So if there's an upside to the current anti-vaccination movement, it's that we might get some more classic children's entertainment out of it.