Air conditioning
In 1902, the first modern electrical air conditioning unit was invented by Willis Carrier in Buffalo, New York. After graduating from Cornell University, Carrier found a job at the Buffalo Forge Company. There, he began experimenting with air conditioning as a way to solve an application problem for the Sackett-Wilhelms Lithographing and Publishing Company in Brooklyn, New York. The first air conditioner, designed and built in Buffalo by Carrier, began working on 17 July 1902.
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.