Teacher Mary S. Wilson held the first observance of Mother's Day in Henderson, Kentucky in 1887. It was made a national holiday in 1916.
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Kentucky-born Alben W. Barkley was the oldest United States Vice President when he assumed office in 1949. He was 71 years old.
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The public saw an electric light for the first time in Louisville, Kentucky. Thomas Edison introduced his incandescent light bulb to crowds at the Southern Exposition in 1883.