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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.