In Brazil, students that pass the vestibulares and begin studying in a college or university are called "calouros" or more informally "bixos" ("bixetes" for girls), an alternate spelling of "bicho", which means "animal". Calouros are often subject to hazing, which is known as "trote" (lit. "prank") there. The first known hazing episode in Brazil happened 1831 at the Law School of Olinda and resulted in the death of a student. In 1999, a Chinese Brazilian calouro of the University of São Paulo Medicine School named Edison Tsung Chi Hsueh was found dead at the institution's swimming pool; this has since become one of the most well known episodes of violent hazing and has received extensive national media coverage since that year.