FWIW, I’ve also occasionally asked both adults and students if they can name all 8 Ivies. So far, no one has gotten them all correct at one sitting. It’s really common to forget Columbia, Brown, and Dartmouth in our area. When I add them to the list I’m often asked, “Are you sure?” A few wonder if Cornell is one too, even though it’s one of the more common Ivies for our students to attend (and U Penn).