A recent study reveals that ancient tribes in Nubia, circa 350-500 AD, were taking medicinal doses of tetracycline, a powerful antibiotic in use today. The researchers believe they were most likely fermenting the tetracycline, which is produced by the soil bacteria streptomyces, in beer. Especially high amounts were found in the bones of those who had died young, such as the skull of a four-year-old, indicating that this wasn't an indifferent ingestion during the course of their daily diet, but rather something they were deliberately giving to those who were suffering from illness.
As UT is always saying, smart is not the same as wise, and I am convinced our current culture is the former.