When Was Blood-letting Common?
Blood-letting was a common form of medical treatment before the time of Hippocrates (400 B. C.), the Greek “father of medicine” and was
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Disease
Who Developed Insulin?
Who Developed Insulin? Insulin extracts, which save the lives of many thousands of people, were developed by the combined efforts of three p
What Was the Black Death?
What Was the Black Death? The Black Death was a plague that raged through Europe from 1347-1350. It was caused by Oriental rat fleas living
When Does Apple Scab Occur?
When Does Apple Scab Occur? Apple scab occurs when an apple tree falls victim to the ascomycete fungus called Venturia Inaequalis, a maligna
When Do Birds Migrate?
When Do Birds Migrate? Millions of birds of many different varieties migrate at the end of summer. With unfailing regularity they leave the