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There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.
Vaccines prevent between 2.5 and 4 million deaths every year.
The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.