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Did you know?
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.
Did you know?
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.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
Approximately 25% of all reported medication errors result from some kind of name confusion.
Did you know?
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.