1897

Decision is made to develop a new classification to replace the Jefferson scheme and beginning of the sheet shelflist.

1940

All shelflist entries are made on cards filed into the card shelflist.

1941

Shelflisting becomes part of the new Subject Cataloging division.

1971

Shelflist Information Cards (SLICs) are introduced.

1974

Library discontinues using A Cutters for documents.

1978

Use of a third letter table when assigning Cutter numbers is introduced; as a result Cutter numbers routinely contain two digits instead of only one.

1981

Cataloging divisions are moved from the Adams to the Madison Building;

AACR 2 is adopted;

Official author-title and subject catalogs are closed, but not the shelflist;

New filing rules are implemented in catalogs and the shelflist.

1982

Imprint date is added to all monographs.

1987

First edition of Subject Cataloging Manual : Shelflisting published.

10/1990-10/1992

Dates in CIP call numbers are no longer changed to reflect the actual publication date.

1992

Whole book reorganization is implemented: shelflisters are assigned to individual teams.

1994

Second edition of Subject Cataloging Manual : Shelflisting is published.

1999

Voyager is adopted; card shelflist is closed.

2004-2005

Card shelflist is dispersed to teams or Adams and Jefferson buildings.

2004-2005

Some catalogers begin doing their own shelflisting; experiments with technicians doing copy cataloging begin.