Rival Schools is a Post Hardcore band from New York, United States that was formed in 1999 by members from several influential 80's and 90's hardcore bands (including Gorilla Biscuits, Quicksand, CIV, Youth of Today, Burn, Project X, Judge, Moondog, Warzone, Side By Side and Iceburn). The band started from the ashes of a short lived project, World's Fastest Car which had Artie Shepard of Mind Over Matter and Bad Trip fame involved, but the project went no further than demos. Apparently Walter and Artie had a difference of opinions hence the split. Artie then started Errortype: 11.