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  The earliest confirmed 3D film shown to an out-of-house audience was The Power of Love, which premiered at the Ambassador Hotel Theater in Los Angeles.
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  John Logie Baird successfully transmits the first television pictures with a greyscale image, in London.
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  The first flight of a liquid-propellant rocket at Auburn, Massachusetts.
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  The aerosol spray can is patented by Erik Rotheim, a Norwegian chemical engineer.
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  Fleming recounted that the date of his discovery of penicillin was on the morning of Friday, September 28, 1928.
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  It is historically correct that, on June 17, 1935, radio-based detection and ranging was first demonstrated in Great Britain.
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  PTFE or polytetrafluoroethylene was discovered on April 6, 1938 by Dr. Roy Plunkett at the DuPont research laboratories in New Jersey.
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  LSD was first synthesized on November 16, 1938 by Swiss chemist Albert Hofmann in Sandoz Laboratories in Basle, Switzerland.
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  The world’s first practical helicopter, took flight at Stratford, Connecticut designed by Igor Sikorsky.
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  The first jeep was built.