美国这种大学录取方式以前是为了对付犹太学生，当时读书好的犹太学生太多，藤校想把小犹比例限制在15%。

 

"Ideally, Lowell wanted to cap Harvard's Jewish population at 15% of the student body, according to Karabel. The size of the Jewish student body had quickly risen from 7% of freshmen in 1900 to 10% in 1909, 15% in 1915, 21.5% in 1922, and 27.6% in 1925."

 

https://www.businessinsider.com/the-ivy-leagues-history-of-discriminating-against-jews-2014-12?