WorldCat is the world's largest union catalogue of libraries, run by the non-profit OCLC, which began in Ohio as the Ohio College Library Center under Frederick Kilgour. It started as a shared online cataloguing system, in which libraries entered the details of a book once so that others could copy them, saving time and cost, and the first online catalogue was used by libraries in Ohio. Over the years, it spread to libraries across the United States and the world, and now includes the holdings of tens of thousands of libraries, with records for books, articles, music and other materials. Readers can search it to find which libraries hold a given item, and it became available on the web in the 2000s.
Before and after
- 6 July 1971Death of Louis Armstrong
- 26 July 1971Launch of Apollo 15
- 28 July 1971Birth of Abu Bakr al-Baghdadi
- from 14 August 1971 to 20 August 1971Stanford prison experiment
- 26 August 1971Launch of WorldCat
- 11 September 1971Death of Nikita Khrushchev
- 15 September 1971Greenpeace sails on its first voyage
- 18 September 1971Birth of Anna Netrebko
- 20 October 1971Birth of Snoop Dogg
More in Science & technology
- 1949Discovery of berkelium
- 1952Discovery of einsteinium
- December 1952Discovery of fermium
- 1958Discovery of nobelium
- c. 1980sInvention of laptop
- 9 November 1994Discovery of darmstadtium
The era
This moment belongs to the Contemporary world (1945 CE to today), the world since 1945. You can also browse everything in the 20th century.