Ivars Peterson (1986-04-05). „The first skyscraper – new theory that Home Insurance Building was not the first“. CBS Interactive. Suarchyvuotas originalas 2012-07-08. Nuoroda tikrinta 2010-01-06. „"In my view, we can no longer argue that the Home Insurance Building was the first skyscraper," says Carl W. Condit, now retired from Northwestern University in Evanston, Ill., and author of several books on Chicago architecture. "The claim rests on an unacceptably narrow idea of what constitutes a high-rise commercial building," he says."If there is a building in which all these technical factors—structural system, elevator, utilities—converge at the requisite level of maturity," argues Condit, "it's the Equitable Life Assurance Building in New York." Completed in 1870, the building rose 7½ stories, twice the height of its neighbors.“
Ivars Peterson (1986-04-05). „The first skyscraper – new theory that Home Insurance Building was not the first“. CBS Interactive. Suarchyvuotas originalas 2012-07-08. Nuoroda tikrinta 2010-01-06. „"In my view, we can no longer argue that the Home Insurance Building was the first skyscraper," says Carl W. Condit, now retired from Northwestern University in Evanston, Ill., and author of several books on Chicago architecture. "The claim rests on an unacceptably narrow idea of what constitutes a high-rise commercial building," he says."If there is a building in which all these technical factors—structural system, elevator, utilities—converge at the requisite level of maturity," argues Condit, "it's the Equitable Life Assurance Building in New York." Completed in 1870, the building rose 7½ stories, twice the height of its neighbors.“
