relations Controversies about the word "niggardly" University of Pennsylvania controversies References External links The water buffalo incident through eyes of Jacobowitz Daily Pennsylvanian, 4/15/2003 GUEST COLUMNIST: Kors: Penn, Hackney mishandled 'water buffalo' case Daily Pennsylvanian, 12/7/1998 Sheldon Hackney's Spring From Hell Pennsylvania Gazette May/June 2003 Book excerpt from The Shadow University 1993 controversies in the United States 1993 in Pennsylvania African-American history in Philadelphia African American–Jewish relations Anti-black racism in the United States Hebrew language History of racism in Pennsylvania Israeli-American history Jews and Judaism in Philadelphia Linguistic controversies Politics and race in the United States University of Pennsylvania