Library and information science (LIS) (sometimes given as the plural library and information sciences) or as "library and information studies") is a merging of library science and information science. The joint term is associated with schools of library and information science (abbreviated to "SLIS"). In the last part of 1960s, schools of librarianship, which generally developed from professional training programs (not academic disciplines) to university institutions during the second half of the 20th century, began to add the term "information science" to their names. The first school to do this was at the University of Pittsburgh in 1964. More schools followed during the 1970s and 1980s, and by the 1990s almost all library schools in the USA had added information science to their names.W