Frankenstein author, Mary Shelley, is world renowned for her terrifying fiction, but few know that she had a dark secret of her own.

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The St. Patrick's Day Parade on Fifth Avenue is a New York City tradition, but did you know the first one was held even before the Declaration of Independence was signed?

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In 1982, Seattle dentist Barney Clark became the first human to receive a permanent artificial heart, a device known as the Jarvik 7. In an interview shortly after the implantation of the pump, Clark expresses his desire to help advance science. He survived for 112 days on the mechanical organ.

Dr. Christiaan Barnard describes his approach to performing the first successful heart transplant. On December 3, 1967, 53-year-old Lewis Washkansky received the first transplant at Groote Schuur Hospital in South Africa.