Evidence of censorship during the prewar period discovered in the U.S.―Naimusho Keihokyoku Censorship Collection held by the LC

摘要

In March 2017, 1,327 items of the Naimusho Keihokyoku Censorship Collection (books banned by the Home Ministry which were held by the Library of Congress (LC)) became available on the National Diet Library Digital Collections. The 301 materials for which the expiration of the copyright protection period has been confirmed as of the end of September 2020 are open to the public on the internet, and others are open to the public by onsite access only.