James Mercer Langston Hughes (February 1, 1902 - May 22, 1967) was an American poet, social activist, novelist, playwright, and columnist. He was one of the earliest innovators of the then-new literary art form jazz poetry. Hughes is best known for his work during the Harlem Renaissance. He famously wrote about the period that 'the negro was in vogue' which was later paraphrased as 'when Harlem was in vogue'. Both of Hughes' paternal great-grandmothers were African-American and both of his paternal great-grandfathers were white slave owners of Kentucky. One of these men was Sam Clay, a Scottish-American whiskey distiller of Henry County and supposedly a relative of Henry Clay, and the other was Silas Cushenberry, a Jewish-American slave trader of Clark County. Hughes's maternal...'