sentences:  HSEF's relationship with Citigroup is unique, since the New York City Department of Education partnered with the company to found the school in 1993.The High School of Economics and Finance was the closest high school in the city to the World Trade Center site, at 1 block from the World Trade Center, and students were heavily affected by the events of September 11th, 2001.After September 11, the school shared facilities with Norman Thomas High School in the Murray Hill neighborhood for 7 months, and students attended school during the irregular hours of 1pm to 7-8pm, 5 days a week
  
  The High School of Economics and Finance offers a wide range of courses that include four years of required English class, three years of social studies, mathematics, science with lab, and foreign language, required four years of business class such as Economics, Entrepreneurship, Introduction to Business, Accounting, Business Law & Ethics, Business Computer Applications, Global Business and Advanced Finance, a year of fine arts and or theatrical arts; and a wide selection of electives, including Advanced Placement (AP) classes that allow students to place out of a few of the prerequisite college courses.