Ilvermorny School of Witchcraft and Wizardry was founded in the seventeenth century by Isolt Sayre, an Irish immigrant who came to America, and her No-Maj husband, James Steward on the highest peak of Mount Greylock.
Intended to mirror Hogwarts, Ilvermorny also had four houses: Thunderbird, Wampus, Horned Serpent and Pukwudgie. The students wore robes in blue and cranberry colours and they were fastened by a gold Gordian knot to represent a brooch from Isolt’s Irish home. As a descendent of Salazar Slytherin, Isolt used the remains of his snakewood wand to grow a tree in the school's grounds, which had magical healing properties.