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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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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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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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There are 60,000 miles of blood vessels in every adult human.