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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.