272 - 337
  Constantine The Great, Roman Emperor  
Constantine, The Great was the 57th Emperor of the Roman Empire from 306, and the sole holder of that office from 324 until his death in 337. Best known for being the first Christian Roman emperor, Constantine reversed the persecutions of h...
    Alice Hamilton, Pioneer of Industrial Toxicology  
Alice Hamilton was an American physician, research scientist, and author who is best known as a leading expert in the field of occupational health and a pioneer in the field of industrial toxicology. Subsequent to her graduation from the...
    John Steinbeck, American Writer  
John Ernst Steinbeck, Jr. was an American writer. He is widely known for the Pulitzer Prize-winning novel The Grapes of Wrath (1939) and East of Eden (1952) and the novella Of Mice and Men (1937). As the author of twenty-seven books, includ...
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