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.
Robert Portner
By 1890, the Italianate house on the property had become too small for their family. He had the house moved and, working with prominent architect Gustav Friebus, Portner designed a new home that would combine elements of his favorite European mansions. Built between 1892 and 1894 at a cost of $150,000, Annaburg was a three-story, thirty-five room architectural gem, complete with indoor plumbing, electricity, and porches that wrapped around three sides. It also featured climate control system which combined two of Portner's brewery inventions, making it what is believed to be the first house in the country to have air-conditioning.