The Library of Congress Control Number (LCCN) is a serially-based system of numbering cataloging records in the Library of Congress in the United States. It has nothing to do with the contents of any book, and should not be confused with Library of Congress Classification.
The LCCN numbering system has been in use since 1898, at which time the acronym LCCN originally stood for Library of Congress Card Number. It has also been called the Library of Congress Catalog Card Number, among other names. The Library of Congress prepared cards of bibliographic information for their library catalog and would sell duplicate sets of the cards to other libraries for use in their catalogs. This is known as centralized cataloging. Each set of cards was given a serial number to help identify it.
Although most of the bibliographic information is now electronically created, stored, and shared with other libraries, there is still a need to identify each unique record, and the LCCN continues to perform that function.
Librarians all over the world use this unique identifier in the process of cataloging most books which have been published in the United States. It helps them reach the correct cataloging data (known as a cataloging record), which the Library of Congress and third parties make available on the Web and through other media.
In February 2008, the Library of Congress created the LCCN Permalink service, providing a stable URL for all Library of Congress Control Numbers.
In its most elementary form the number includes a year and a serial number. The year has two digits for 1898 to 2000, and four digits beginning in 2001. The three ambiguous years (1898, 1899, and 1900) are distinguished by the size of the serial number. There are also some peculiarities in numbers beginning with a "7" because of an experiment applied between 1969 and 1972 which added a check digit. 
Serial numbers are six digits long and should include leading zeros. The leading zeros padding the number are a more recent addition to the format, so many older works will show less full codes. The hyphen that is often seen separating the year and serial number is optional. More recently, the Library of Congress has instructed publishers not to include a hyphen.
The second Palm Sunday tornado outbreak occurred on April 11–12, 1965, in the Midwest U.S. states of Indiana, Ohio, Michigan, Wisconsin, Illinois and Iowa, with 47 tornadoes (32 significant, 17 violent, 21 killers). It was the second-biggest outbreak on record at the time. In the Midwest, 271 people were killed and 1,500 injured (1,200 in Indiana). It was the deadliest tornado outbreak in Indiana history, with 137 people killed. The outbreak also made that week in April 1965 the second-most-active week in history, with 51 significant and 21 violent tornadoes.Arthur Gelb
Arthur Gelb (February 3, 1924 – May 20, 2014) was an American editor, author and executive and was the managing editor of The New York Times from 1986 to 1989.CODASYL
CODASYL, the Conference/Committee on Data Systems Languages, was a consortium formed in 1959 to guide the development of a standard programming language that could be used on many computers. This effort led to the development of the programming language COBOL and other technical standards.
CODASYL's members were individuals from industry and government involved in data processing activity. Its larger goal was to promote more effective data systems analysis, design, and implementation. The organization published specifications for various languages over the years, handing these over to official standards bodies (ISO, ANSI, or their predecessors) for formal standardization.CODEN
CODEN – according to ASTM standard E250 – is a six character, alphanumeric bibliographic code, that provides concise, unique and unambiguous identification of the titles of periodicals and non-serial publications from all subject areas.
CODEN became particularly common in the scientific community as a citation system for periodicals cited in technical and chemistry-related publications and as a search tool in many bibliographic catalogues.Chimayo, New Mexico
Chimayó is a census-designated place (CDP) in Rio Arriba and Santa Fe counties in the U.S. state of New Mexico; the name derives from a Tewa name for a local landmark, the hill of Tsi Mayoh. The town is unincorporated and includes many neighborhoods, called plazas or placitas, each with its own name, including El Potrero de Chimayó (the plaza near Chimayó's communal pasture) and the Plaza del Cerro (plaza by the hill). The cluster of plazas called Chimayó lies near Santa Cruz about 25 miles north of Santa Fe. The population was 3,177 at the 2010 census.Claus Toksvig
Claus Toksvig (21 October 1929 – 5 November 1988) was a Danish journalist and broadcaster who, as the Danish Broadcasting Corporation's first ever permanent foreign correspondent, is widely acknowledged as one of the greatest figures in Danish broadcasting history.
In later life he turned his attention to politics. In 1984, he was elected as a member of the European Parliament and served briefly as one of the European Parliament's fourteen Vice-Presidents.Elijah Nicholas Wilson
Elijah Nicholas Wilson (April 8, 1842 - December 26, 1915) was known as "Yagaiki" when among the Shoshones, and in his later years as "Uncle Nick" when entertaining young children with his adventurous exploits. He was a Mormon American pioneer, childhood runaway, "adopted" brother of Shoshone Chief Washakie, Pony Express rider for the Central Overland California and Pikes Peak Express Company, stagecoach driver for Ben Holloday's Overland Stage, blacksmith, prison guard, farmer, Mormon bishop, prison inmate (unlawful cohabitation), carpenter/cabinet maker, fiddler, trader, trapper, and "frontier doctor" (diphtheria and smallpox).
Wilson is remembered today due to the publication of derivative works based upon, and later-day republications of, his 1910 autobiography entitled Among the Shoshones, such as The White Indian Boy: The Story of Uncle Nick Among the Shoshones (a volume of the World Book Company's In Pioneer Life Series), The White Indian Boy, and its sequel The Return of the White Indian. He founded Wilson, Wyoming. His life was highlighted in the 2000 movie Wind River.Kunwar Mohinder Singh Bedi Sahar
Kunwar Mohinder Singh Bedi (Urdu: کنور مہیندرا سنگھ بیدی سحر) pen name Sahar was an Indian Urdu poet. The Times of India called him a "noted Urdu poet".Oregon Geographic Names
Oregon Geographic Names is a compilation of the origin and meaning of place names in the U.S. state of Oregon, published by the Oregon Historical Society. The book was originally published in 1928. It was compiled and edited by Lewis A. McArthur. As of 2011, the book is in its seventh edition, which was compiled and edited by Lewis L. McArthur (who died in 2018).Paul von Lilienfeld
Paul Frommhold Ignatius von Lilienfeld-Toal (Russian: Павел Фёдорович Лилиенфельд-Тоаль, tr. Pavel Fydorovich Lilienfel’d-Toal’; French: Paul de Lilienfeld; 1829–1903) was a Baltic German statesman and social scientist of imperial Russia. He was governor of the Courland Governorate from 1868 till 1885. During that time, he developed his Thoughts on the Social Science of the Future, first in Russian as Мысли о социальной науке будущего (Mysli o sotsial'noi naukie budushchego; 1872), and then in German as Gedanken über die Socialwissenschaft der Zukunft (1873–1881). Lilienfeld's thoughts, which he later articulated in compressed form in both French and Italian, laid out his organic theory of societies, also known as the social organism theory, organicist sociology, or simply organicism. He later became a senator in the Russian parliament, as well as vice-president (1896), then president (1897), of the Institut International de Sociologie (International Institute of Sociology) in Paris.Pennsylvania-Reading Seashore Lines
The Pennsylvania-Reading Seashore Lines was a railroad that operated in southern New Jersey in the 20th century. It was created in 1933 as a joint consolidation venture between two competing railroads in the region.Robert Clarke
Robert Irby Clarke (June 1, 1920 – June 11, 2005) was an American actor best known for his cult classic science fiction films of the 1950s.Vought O4U Corsair
The Vought O4U Corsair was the designation applied to two different experimental biplane scout-observation aircraft. Neither reached production or entered regular service.West Jersey and Seashore Railroad
The West Jersey and Seashore Railroad (WJ&S) was a Pennsylvania Railroad subsidiary that became part of Pennsylvania-Reading Seashore Lines in 1933. At the end of 1925 it operated 379 miles (610 km) of road on 717 miles (1,154 km) of track; that year it reported 166 million ton-miles of revenue freight and 332 million passenger-miles.