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By: Hilary Gilson | Published: Aug 19, 2008

Leonardo da Vinci's embryological drawings of the fetus in the womb and his accompanying observational annotations are found in the third volume of…

By: Katherine Brind'Amour | Published: Nov 11, 2007

"Effraenatam," the brain-child of Pope Sixtus V, was released as a papal bull in the year 1588. Papal bulls are formal declarations issued by the…