9/11 and The World Trade Center

1384 Words6 Pages
Completed in 1973, an exhibit called the World Trade Center, which is supposed to stand for “world peace through trade”, were two of the tallest buildings in the world. Nine-eleven was arguably the best security advancement to occur in America. It brought new laws, ways to travel, government agencies, and counter-terrorism programs. David Rockefeller, the grandson of John D. Rockefeller, decided to take on the decision to build the World Trade Centers ("World"). Construction officially began in February of 1967 ("World"). Traditional designs back then were stacked glass and steel box construction, who knew they wanted the building to be different, so they used two hollow tubes supported by closely spaced steel columns encased in aluminum ("World"). The floor trusses connected exterior steel lattice with the central steel core of the building. The “skin” of the building needed to be strong in order to support the internal columns ("World"). To put the steel frame together, they used Australian made “kangaroo” cranes ("World"). They’re self-powered cranes that are powered by diesel motors which hoist themselves up as building grew higher ("World"). More than two-hundred thousand pieces of steel were manufactured around the country in order to construct the buildings ("World"). The end of construction was April 1973 ("World"). The towers stood for how powerful and rich America was. The day of the attacks was a normal day for citizens. Then, in an instant, everything changed. 19 militants from an Islamic extremist group al-Qaeda decided to carry out a plan to attack America (“9/11 Attacks”). Approximately, at 5:45 A.M. the hijackers passed security clearances, and took off in Flight 11 a few hours later (“Interactive 9/11 Timelines... ... middle of paper ... ...to America, but America has gained intelligence on how to protect the United States. America has gotten stronger and more powerful, so if anything like this were to happen again, America will be ready to defend the nation at all costs. Works Cited “9/11 Attacks.” History.com A&E Television Networks. 2010. Web. 21 May 2014. “About the Memorial.” 9/11 Memorial. National September 11 Memorial & Museum. 2014. Web. 21 May 2014 France-Presse, Agence. “Osama Bin Laden claimed responsibility for 9/11 Attacks, Says Son-in-Law.” Inquirer News. Inquirer.net 20 Mar. 2014. Web. 21 May 2014. “Interactive 9/11 Timelines.” 9/11 Memorial. National September 11 Memorial & Museum. 2014. Web. 21 May 2014. Villemez, Jason. “9/11 to Now: Ways We Have Changed.” PBS. PBS 14 Sept. 2011. Web. 21 May 2014. "World Trade Center." History.com. A&E Television Networks, n.d. Web. 20 May 2014.
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