Feb 16, 2018
In February 1976, the Princeton University Library announced that new books would no longer be cataloged using the special classification system Ernest Cushing Richardson had developed in the 1880s because the Dewey Decimal System was inadequate for a research library. Instead, new books would use the Library of Congress Classification System (LCCN). Richardson numbers, like those on the books pictured above ca. 1970s, were more nuanced than LCCN, but having a system specific to Princeton proved too expensive to sustain.