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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.