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Here are three more references I dug up:</p>
<p>[History</a> of the Ivies | Education History](<a href=“http://www.ajha.org/history-of-the-ivies.htm]History”>http://www.ajha.org/history-of-the-ivies.htm)
8 Ivies + MIT, Stanford and Duke</p>
<p>[Invest</a> Like the Ivy League? - CXO Advisory](<a href=“http://www.cxoadvisory.com/1493/investing-expertise/invest-like-the-ivy-league/]Invest”>Invest Like the Ivy League? - CXO Advisory)
8 Ivies + Duke, MIT, Caltech and Stanford</p>
<p>Zawel, Marc (September 1, 2005). “Defining the Ivy League”. Untangling the Ivy League. College *******. p. 9. ISBN 1596585005.
“In his book Untangling the Ivy League, Zawel writes, 'The inclusion of non-Ivy League schools under this term is commonplace for some schools and extremely rare for others. Among these other schools, Massachusetts Institute of Technology and Stanford University are almost always included. The University of Chicago and Duke University are often included as well.”'</p>
<p>I’m surprised Caltech doesn’t get more mentions; it would be my 3rd nomination after MIT and Stanford.</p>
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<p>Um, a couple of those schools are on there. I spot with my little eyes UVA and Williams. The inclusion of U of Washington and the exclusion of Middlebury, Swat and Notre Dame is nonsensical though.</p>