Update History
May 26,2025
・Announcing "Periodic Biblio Trends (Beta)"
We've launched a new experimental feature: Periodic Biblio Trends (Beta). This feature provides an overview of bibliographic records, enabling you to browse record counts and lists categorized by different time periods, all derived from the publication and writing years of the records.
・Announcing "Periodic Biblio Trends (Beta)"
We've launched a new experimental feature: Periodic Biblio Trends (Beta). This feature provides an overview of bibliographic records, enabling you to browse record counts and lists categorized by different time periods, all derived from the publication and writing years of the records.
May 26,2025
The number of items was updated to 970,214 bibliographic records, 509,600 work records and 74,959 author records.
The number of items was updated to 970,214 bibliographic records, 509,600 work records and 74,959 author records.
May 8,2025
This database is scheduled to be unavailable because of a power cut. (June 1, 8:00 a.m. - 4:00 p.m.)
This database is scheduled to be unavailable because of a power cut. (June 1, 8:00 a.m. - 4:00 p.m.)
April 21,2025
The number of items was updated to 969,310 bibliographic records, 509,370 work records and 74,944 author records.
The number of items was updated to 969,310 bibliographic records, 509,370 work records and 74,944 author records.
March 31,2025
The number of items was updated to 965,598 bibliographic records, 509,305 work records and 74,936 author records.
The number of items was updated to 965,598 bibliographic records, 509,305 work records and 74,936 author records.
March 17,2025
We are excited to announce that the images of contents publicly available in Union Catalogue Database of Japanese Texts has surpassed 300,000! We appreciate your continued support of our database.
We are excited to announce that the images of contents publicly available in Union Catalogue Database of Japanese Texts has surpassed 300,000! We appreciate your continued support of our database.
March 17,2025
The number of items was updated to 957,811 bibliographic records, 509,274 work records and 74,931 author records.
The number of items was updated to 957,811 bibliographic records, 509,274 work records and 74,931 author records.
February 25,2025
The number of items was updated to 956,815 bibliographic records, 508,983 work records and 74,863 author records.
The number of items was updated to 956,815 bibliographic records, 508,983 work records and 74,863 author records.
January 29,2025
・Maintenance Notice
We kindly inform you that we will be conducting system maintenance on our database to enhance system performance.
During this maintenance period, access to the database will be temporarily unavailable.
Date: February 1, 2025
Time: 6:00 AM - 12:00 PM JST
We apologize for any inconvenience this may cause and appreciate your understanding as we work to improve our services.
・Maintenance Notice
We kindly inform you that we will be conducting system maintenance on our database to enhance system performance.
During this maintenance period, access to the database will be temporarily unavailable.
Date: February 1, 2025
Time: 6:00 AM - 12:00 PM JST
We apologize for any inconvenience this may cause and appreciate your understanding as we work to improve our services.
January 27,2025
The number of items was updated to 950,545 bibliographic records, 508,743 work records and 74,821 author records.
The number of items was updated to 950,545 bibliographic records, 508,743 work records and 74,821 author records.
December 23,2024
We have made the filtering search by keywords in the bibliographic advanced search work the same way as in the simple search.
It is now easier to narrow down the data you are looking for in combination with the fields of the advanced search.
Additionally, we have revised the search index design to improve speed.
We have made the filtering search by keywords in the bibliographic advanced search work the same way as in the simple search.
It is now easier to narrow down the data you are looking for in combination with the fields of the advanced search.
Additionally, we have revised the search index design to improve speed.
December 23,2024
The number of items was updated to 947,610 bibliographic records, 508,503 work records and 74,777 author records.
The number of items was updated to 947,610 bibliographic records, 508,503 work records and 74,777 author records.
November 25,2024
The number of items was updated to 945,026 bibliographic records, 508,242 work records and 74,731 author records.
The number of items was updated to 945,026 bibliographic records, 508,242 work records and 74,731 author records.
October 29,2024
The number of items was updated to 942,031 bibliographic records, 508,106 work records and 74,698 author records.
The number of items was updated to 942,031 bibliographic records, 508,106 work records and 74,698 author records.
September 24,2024
The number of items was updated to 939,879 bibliographic records, 507,693 work records and 74,636 author records.
The number of items was updated to 939,879 bibliographic records, 507,693 work records and 74,636 author records.
August 26,2024
The number of items was updated to 926,893 bibliographic records, 507,290 work records and 74,582 author records.
The number of items was updated to 926,893 bibliographic records, 507,290 work records and 74,582 author records.
July 29,2024
The number of items was updated to 926,160 bibliographic records, 507,032 work records and 74,550 author records.
The number of items was updated to 926,160 bibliographic records, 507,032 work records and 74,550 author records.
July 22,2024
The number of items was updated to 926,205 bibliographic records, 506,988 work records and 74,545 author records.
The number of items was updated to 926,205 bibliographic records, 506,988 work records and 74,545 author records.
July 19,2024
This database is scheduled to software maintenance on August 4, 9:00-16:00.
During those hours, it may be difficult to connect to this database.
This database is scheduled to software maintenance on August 4, 9:00-16:00.
During those hours, it may be difficult to connect to this database.
June 24,2024
The number of items was updated to 925,599 bibliographic records, 506,779 work records and 74,515 author records.
The number of items was updated to 925,599 bibliographic records, 506,779 work records and 74,515 author records.
June 3,2024
The terms of use for the images in "Union Catalogue Database of Japanese Texts" (limited to NIJL collections) have been changed to "Public Domain."more information
The terms of use for the images in "Union Catalogue Database of Japanese Texts" (limited to NIJL collections) have been changed to "Public Domain."more information
June 3,2024
The number of items was updated to 923,802 bibliographic records, 506,672 work records and 74,498 author records.
The number of items was updated to 923,802 bibliographic records, 506,672 work records and 74,498 author records.
May 24,2024
This database is scheduled to be unavailable because of a power cut (June 2, 9:00-16:00).
This database is scheduled to be unavailable because of a power cut (June 2, 9:00-16:00).
April 22,2024
The number of items was updated to 922,365 bibliographic records, 506,384 work records and 74,449 author records.
The number of items was updated to 922,365 bibliographic records, 506,384 work records and 74,449 author records.
April 3,2024
"Bibliographic and Image Database Japanese Modern Times" has been merged into "Union Catalogue Database of Japanese Texts" since April 1, 2024.more information
"Bibliographic and Image Database Japanese Modern Times" has been merged into "Union Catalogue Database of Japanese Texts" since April 1, 2024.more information
March 25,2024
The number of items was updated to 922,013 bibliographic records, 506,108 work records and 74,425 author records.
The number of items was updated to 922,013 bibliographic records, 506,108 work records and 74,425 author records.
March 22,2024
"Bibliographic and Image Database Japanese Modern Times" will be merged into "Union Catalogue Database of Japanese Texts" on April 1, 2024.more information
"Bibliographic and Image Database Japanese Modern Times" will be merged into "Union Catalogue Database of Japanese Texts" on April 1, 2024.more information
March 10,2024
The number of items was updated to 874,802 bibliographic records, 506,002 work records and 74,419 author records.
The number of items was updated to 874,802 bibliographic records, 506,002 work records and 74,419 author records.
February 18,2024
The number of items was updated to 874,324 bibliographic records, 505,843 work records and 74,404 author records.
The number of items was updated to 874,324 bibliographic records, 505,843 work records and 74,404 author records.
January 21,2024
The number of items was updated to 872,734 bibliographic records, 505,589 work records and 74,379 author records.
The number of items was updated to 872,734 bibliographic records, 505,589 work records and 74,379 author records.
December 25,2023
The number of items was updated to 871,111 bibliographic records, 505,377 work records and 74,361 author records.
The number of items was updated to 871,111 bibliographic records, 505,377 work records and 74,361 author records.
November 26,2023
The number of items was updated to 867,697 bibliographic records, 504,950 work records and 74,332 author records.
The number of items was updated to 867,697 bibliographic records, 504,950 work records and 74,332 author records.
November 24,1023
This database is scheduled to Facility Network Maintenance on December 21, 23:00-03:00.
During those hours, it may be difficult to connect to this database.
This database is scheduled to Facility Network Maintenance on December 21, 23:00-03:00.
During those hours, it may be difficult to connect to this database.
October 30,1023
The number of items was updated to 861,840 bibliographic records, 504,671 work records and 74,291 author records.
The number of items was updated to 861,840 bibliographic records, 504,671 work records and 74,291 author records.
September 28,1023
The number of items was updated to 848,358 bibliographic records, 504,165 work records and 74,246 author records.
The number of items was updated to 848,358 bibliographic records, 504,165 work records and 74,246 author records.
September 6,2023
The brochure for the Union Catalogue Database of Japanese Texts is now available.
The brochure for the Union Catalogue Database of Japanese Texts is now available.
August 28,2023
The number of items was updated to 847,537 bibliographic records, 503,953 work records and 74,223 author records.
The number of items was updated to 847,537 bibliographic records, 503,953 work records and 74,223 author records.
August 21,2023
The number of items was updated to 846,253 bibliographic records, 503,919 work records and 74,244 author records.
The number of items was updated to 846,253 bibliographic records, 503,919 work records and 74,244 author records.
July 26,2023
This database is scheduled to system maintenance on August 26-27.
During those hours, it may be difficult to connect to this database.
This database is scheduled to system maintenance on August 26-27.
During those hours, it may be difficult to connect to this database.
July 24,2023
Bibliographic records from "Union Catalogue of Early Japanese books in Europe" are now available.
List of Countries & Institutions.
Bibliographic records from "Union Catalogue of Early Japanese books in Europe" are now available.
List of Countries & Institutions.
July 24,2023
The number of items was updated to 838,401 bibliographic records, 503,657 work records and 74,216 author records.
The number of items was updated to 838,401 bibliographic records, 503,657 work records and 74,216 author records.
June 20,2023
This database is scheduled to server maintenance on June 26, 10:00-12:00.
During those hours, it may be difficult to connect to this database.
This database is scheduled to server maintenance on June 26, 10:00-12:00.
During those hours, it may be difficult to connect to this database.
June 19,2023
The number of items was updated to 824,459 bibliographic records, 503,339 work records and 74,194 author records.
The number of items was updated to 824,459 bibliographic records, 503,339 work records and 74,194 author records.
June 6,2023
This database is scheduled to be unavailable because of a power cut (June 10, 7:00-9:00).
This database is scheduled to be unavailable because of a power cut (June 10, 7:00-9:00).
May 31,2023
This database is scheduled to be unavailable because of a power cut (June 4, 9:00-16:00).
This database is scheduled to be unavailable because of a power cut (June 4, 9:00-16:00).
May 29,2023
The number of items was updated to 821,897 bibliographic records, 503,024 work records and 74,157 author records.
The number of items was updated to 821,897 bibliographic records, 503,024 work records and 74,157 author records.
April 28,2023
English version of the User Guide is now available.
English version of the User Guide is now available.
Feb.27.2023 Release of the Union Catalogue Database of Japanese Texts (tentative edition). The official launch will be on Mar 1 at 10:00 (JST).