In the mid-1950s, Dr. Jonas E. Salk developed the vaccine for a disease that had been causing quite a scare in the United States since 1948. The illness, called polio, only affected about 600,000 kids ...
Joni Mitchell, 82, known for eternal hits like Both Sides Now and Big Yellow Taxi, has stepped away from the public eye for years after retiring from music and struggling with serious health ...
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