1, Princeton University (hereinafter referred to as "Princeton") is a private research university, founded in 1746, located in Princeton, New Jersey on the east coast of the United States. It is one of the founding institutions of 14 in association of american universities and a member of the Ivy League.

2. Cornell University in Ithaca, new york, USA is a private research university (the other two campuses are located in new york City and Qatar Education City respectively). This school is one of the 14 founding colleges in association of american universities and one of the eight members of the famous Ivy League school.

3. The University of Chicago (hereinafter referred to as "University of Chicago") was founded in 1890 by the oil magnate john rockefeller. Located in Chicago, the financial center of the United States, it is a private research university and ranks among the top ten universities in the world all the year round.

4. Columbia University, officially named new york University in the city of new york, is a private research university located in Manhattan, new york, USA. It is one of the founding institutions of association of american universities14 and one of the Ivy League schools, ranking in the top five in the United States and the top ten in the world.

5. The University of Pennsylvania (UPenn), located in Philadelphia, the largest city in Pennsylvania, is a private research university, one of the eight Ivy League schools and one of the founding members of association of american universities 14.

Reference to the above content: Baidu Encyclopedia-University of Pennsylvania

Reference to the above content: Baidu Encyclopedia-Columbia University

Reference to the above content: Baidu Encyclopedia-University of Chicago

Reference to the above content: Baidu Encyclopedia-Cornell University

Reference to the above content: Baidu Encyclopedia-Princeton University