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The 70th anniversary of The National Diet Library


The National Diet Library (NDL), founded in 1948, is the library that serves the research needs of the National Diet of Japan. It was established by the Diet Law and the National Diet Library Law. The NDL celebrates its 70th anniversary in 2018.

The collections held by NDL have changed dramatically over 70 years. The NDL has added various types of materials such as electronic materials, online publication, and websites to its traditional collections.
User environments have also changed. Our service began with on-site user services and expanded to remote user services such as remote copying services and creating databases, providing digitized contents on the internet. We have improved the user environment to enhance accessibility from anywhere in the world to the library materials and information we provide.
But our three main roles have not changed since our founding. Our roles are as follows :

  1. Support to the Diet
  2. Acquisition and preservation of materials and information
  3. Providing the public with access to information resources

We will continue to play these roles by using the intellectual heritage collected by the NDL and continue to contribute to the development of a prosperous future.

Commemorative events

We will hold international symposiums and exhibition free of charge. Please take a closer look at the NDL's unique efforts and its valuable collection on this occasion.
(Details will be appended as soon as decided)


  • 2018 APLAP(Association of Parliamentary Librarians of Asia and the Pacific)Conference - Tokyo
    * Conference only for member organization


  • International Symposium "International Symposium commemorating the 70th Anniversary of the National Diet Library's Branch Library System – Innovation and the Role of the Public Sector"
    Date and time:Thursday, March 1, 2018 14:00-17:00
    Venue:Auditorium, Annex, Tokyo Main Building of National Diet Library
    * Please apply in advance. For more information, please see Events.
  • International symposium commemorating the 70th anniversary of the Legal Deposit System


  • 70-anniversary Commemorative Exhibition: A Treasure Box of Books – The 70-year History of the National Diet Library and Its Collections
    Thursday, October 18 to Saturday, November 24, 2018 at the Tokyo Main Building of the National Diet Library
    Friday, November 30 to Saturday, December 22, 2018 at the Kansai-kan of the National Diet Library

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