1. Steel
... in 1889, the first structure ever built where the outside walls did not carry the weight of the building. In order for Fuller's idea to work he needed a material and enough of that material to make a steel cage that could support the weight. The Flatiron Building was one of New York City's first skyscrapers, built in 1902 by Fuller's building company. With ... ...
- Word Count: 234
- Approx Pages: 1
- Grade Level: High School