The very tall building as a type: born in 1880s Chicago and New York from the meeting of the steel frame, the safety elevator and expensive land, given artistic form by Louis Sullivan, competitive glamour by the Art Deco towers, corporate uniformity by the International Style, and global reach by the supertalls of Asia and the Gulf, Burj Khalifa above all. The building most often credited with originating the type, William Le Baron Jenney's Home Insurance Building in Chicago (1885), carries a live dispute over that very claim: the Chicago press of the day never called it the first skyscraper, and other iron-framed contenders, the 1870 Equitable Life Building in New York and the 1882 Montauk Building in Chicago among them, predate it, though the Home Insurance Building is credited as the first to carry its exterior masonry entirely on an iron frame in the way that became the worldwide standard.