0 Which scientist developed the polio vaccine first widely used in 1955? Jonas Salk Albert Sabin Louis Pasteur Alexander Fleming Play Now More questions Which Asian country was divided at the 38th parallel after World War II? Play Now Which 1927 film is widely recognized as the first feature-length “talkie”? Play Now Enter your email to see the answer! By subscribing to TriviaTalent you are agreeing to our Privacy Policy and Terms of Use. See Results