The limits previously imposed by load-bearing wall construction were shattered in 1885 when [L3 202 / steel] was first used in architecture as part of the Home Insurance Building in Chicago. Ten years later steel [G 03 / columns] were first used in the Reliance Building, also in Chicago. Soon thereafter, the Singer Building in Chicago, designed by Ernest Flagg, became the first building to use a complete frame made totally from steel. It stood 47 stories and reached a height of 612 feet, the tallest habitable building in the world at that time. (The Eiffel Tower, also a steel structure, stood 1,024.5 feet, but was not habitable.)
