In 1843, New England housewife Nancy Johnson invented the hand-cranked ice cream churn. She patented her invention but lacked the resources to make and market the churn herself. Mrs. Johnson sold the patent for $200 to a Philadelphia kitchen wholesaler who, by 1847, made enough freezers to satisfy the high demand. From 1847 to 1877, more than 70 improvements to ice cream churns were patented.

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"It takes a lot of brains to enjoy satire, humor and wit - but none to be offended by them." -- Johnny Hart ("BC", cartoonist, 2000)
"Analyzing humor is like dissecting a frog: Nobody really enjoys it and the frog generally dies as a result." -- E. B. White