Conversation so far:
why is mit not an ivy league school
MIT is not an Ivy League schools simply because it is not a member of the Ivy League.
Who are the member schools of the Ivy League?
The Ivy League's eight members are Brown University, Columbia University, Cornell University, Dartmouth College, Harvard University, the University of Pennsylvania, Princeton University, and Yale University.
When was the Ivy League formed?
While the term was in use as early as 1933, it became official only after the formation of the NCAA Division I athletic conference in 1954.
Where does the name Ivy League originate?
The first usage of Ivy in reference to a group of colleges is from sportswriter Stanley Woodward in reference to students long revering the ivied walls of older colleges.

Question: Are the schools in the league all private?
Self-contained rewrite: Are all Ivy League schools private universities?