The area was part of the Louisiana purchase
Judicial review or the ability of the Court to declare a Legislative or Executive act in violation of the Constitution
Germany needed weapons for the war so they employed more and more people. At one point in time they even employed Children, when the war was becoming troublesome for them. They would also have labor camps where prisoners would have to work and make things for Germans, but they were more concentration camps than labor camps and those who couldn't work were executed. It was overseen by the government.
The answer is actually "The attack on the World Trade Center." on February 26, 1993, 6 people died, but hundreds of others were injured and sent to the hospital in critical conditions. More than a thousand people were injured that day. The World Trade Center itself suffered more than $500 million in damage. After the attack, authorities evacuated 50,000 people from the buildings.