Air conditioning
Modern air conditioning emerged from advances in chemistry during the 19th century, and the first large-scale electrical air conditioning was invented and used in 1902 by US inventor Willis Carrier. The introduction of residential air conditioning in the 1920s helped enable the great migration to the Sun Belt in the United States.
Charles Gilbert Gates
Charles Gilbert Gates was the son of John Warne Gates, the pioneer manufacturer of barbed wire. In July 1913 he drove from his home in Minneapolis to New York City, where he had a seat on the New York Stock Exchange. He died in Cody, Wyoming in 1913. After his death his home was completed and was the first to have air conditioning installed.