when was the first skyscraper built in new york city
Early skyscrapers There is academic disagreement over which building should be considered the first skyscraper.[37] The term was first used in the 1780s to describe a particularly tall horse, before later being applied to the sail at the top of a ship's mast, tall hats and bonnets, tall men, and a ball that was hit high into the air.[38] In the 1880s it began to be applied to buildings, first in 1883 to describe large public monuments and then in 1889 as a label for tall office blocks, coming into widespread use over the next decade.[39] Identifying the first "true skyscraper" is not straightforward, and various candidates exist depending on the criteria applied.[40] George Post's New York Equitable Life Building of 1870, for example, was the first tall office building to use the elevator, while his Produce Exchange building of 1884 made substantial structural advances in metal frame design.[41] The Home Insurance Building in Chicago, opened in 1885, is, however, most often labelled the first skyscraper because of its innovative use of structural steel in a metal frame design.[42]
World Trade Center (1973–2001) The original World Trade Center was a large complex of seven buildings in Lower Manhattan, New York City, United States. It featured the landmark twin towers, which opened on April 4, 1973, and were destroyed as a result of the September 11 attacks in 2001. At the time of their completion, the "Twin Towers"—the original 1 World Trade Center, at 1,368 feet (417 m); and 2 World Trade Center, at 1,362 feet (415.1 m)—were the tallest buildings in the world. The other buildings in the complex included the Marriott World Trade Center (3 WTC), 4 WTC, 5 WTC, 6 WTC, and 7 WTC. All these buildings were built between 1975 and 1985, with a construction cost of $400 million ($2,300,000,000 in 2014 dollars).[4] The complex was located in New York City's Financial District and contained 13,400,000 square feet (1,240,000 m2) of office space.[5][6]