CLASSIFICATION SCHEMES AND YEAR OF PUBLICATION

• Dewey Decimal Classification (DDC) -- 1876 • Expansive Classificatgion -- 1891 • Library of congress Classification--1904 • Universal Decimal Classification (UDC)--1905 • Subject Classification (SC)--1906 • Colon Classification (CC)--1933 • Bibliographic Classification (BC)--1935 • Riders Internation Classification (RIC)--1961 • Broad System of Ordering--1978