As of 2022-03-07, the Wikidata property U.S. National Archives Identifier (P1225) is used on 644,699 items as main value on statements (not counting qualifiers) of the Q and P namespaces.

Closest properties: by cardinality of intersection, by Jaccard index.

Display properties of the following types:                                    

Closest properties by cardinality of intersection

IDLabelIntersection cardinalityJaccard index
P244 Library of Congress authority ID 21,763
 0.0111
P646 Freebase ID 21,215
 0.0042
P214 VIAF ID 20,133
 0.0060
P7859 WorldCat Identities ID 17,653
 0.0071
P227 GND ID 10,156
 0.0053
P2163 FAST ID 10,128
 0.0095
P1566 GeoNames ID 9,383
 0.0022
P1417 Encyclopædia Britannica Online ID 8,778
 0.0109
P213 ISNI 8,291
 0.0041
P6766 Who's on First ID 7,111
 0.0058
P3417 Quora topic ID 6,831
 0.0083
P3430 SNAC ARK ID 6,803
 0.0088
P590 GNIS ID 6,516
 0.0051
P8189 National Library of Israel J9U ID 6,363
 0.0079
P268 Bibliothèque nationale de France ID 6,057
 0.0050
P5573 archINFORM location ID 5,872
 0.0086
P1296 Gran Enciclopèdia Catalana ID 5,450
 0.0072
P535 Find a Grave memorial ID 4,881
 0.0065
P6761 NARA collection identifier 4,752
 0.0074
P1006 Nationale Thesaurus voor Auteurs ID 4,636
 0.0040
P269 IdRef ID 4,625
 0.0039
P1667 Getty Thesaurus of Geographic Names ID 4,448
 0.0064
P691 NKCR AUT ID 4,244
 0.0039
P402 OpenStreetMap relation ID 4,053
 0.0048
P3368 Prabook ID 4,012
 0.0046
P4342 Store norske leksikon ID 4,006
 0.0056
P982 MusicBrainz area ID 3,977
 0.0059
P1207 NUKAT ID 3,941
 0.0034
P2949 WikiTree person ID 3,931
 0.0044
P648 Open Library ID 3,429
 0.0038
P1263 NNDB people ID 3,384
 0.0050
P7471 iNaturalist place ID 3,273
 0.0047
P2924 Great Russian Encyclopedia Online ID 3,102
 0.0045
P349 National Diet Library ID 2,994
 0.0038
P2600 Geni.com profile ID 2,956
 0.0033
P8408 KBpedia ID 2,955
 0.0043
P998 Curlie ID 2,921
 0.0045
P774 FIPS 55-3 (locations in the US) 2,891
 0.0042
P8814 WordNet 3.1 Synset ID 2,759
 0.0042
P4823 American National Biography ID 2,759
 0.0042
P8168 FactGrid item ID 2,729
 0.0037
P4839 Wolfram Language entity code 2,681
 0.0031
P3219 Encyclopædia Universalis ID 2,658
 0.0039
P7293 PLWABN ID 2,464
 0.0025
P5063 Interlingual Index ID 2,374
 0.0036
P8119 HASC 2,332
 0.0036
P2347 YSO ID 2,311
 0.0035
P3222 NE.se ID 2,286
 0.0033
P950 Biblioteca Nacional de España ID 2,272
 0.0027
P949 National Library of Israel ID 2,231
 0.0031

Closest properties by Jaccard index

IDLabelIntersection cardinalityJaccard index
P244 Library of Congress authority ID 21,763
 0.0111
P1417 Encyclopædia Britannica Online ID 8,778
 0.0109
P2163 FAST ID 10,128
 0.0095
P3430 SNAC ARK ID 6,803
 0.0088
P5573 archINFORM location ID 5,872
 0.0086
P3417 Quora topic ID 6,831
 0.0083
P8189 National Library of Israel J9U ID 6,363
 0.0079
P6761 NARA collection identifier 4,752
 0.0074
P1296 Gran Enciclopèdia Catalana ID 5,450
 0.0072
P7859 WorldCat Identities ID 17,653
 0.0071
P535 Find a Grave memorial ID 4,881
 0.0065
P1667 Getty Thesaurus of Geographic Names ID 4,448
 0.0064
P214 VIAF ID 20,133
 0.0060
P982 MusicBrainz area ID 3,977
 0.0059
P6766 Who's on First ID 7,111
 0.0058
P4342 Store norske leksikon ID 4,006
 0.0056
P227 GND ID 10,156
 0.0053
P590 GNIS ID 6,516
 0.0051
P1263 NNDB people ID 3,384
 0.0050
P268 Bibliothèque nationale de France ID 6,057
 0.0050
P402 OpenStreetMap relation ID 4,053
 0.0048
P7471 iNaturalist place ID 3,273
 0.0047
P3368 Prabook ID 4,012
 0.0046
P2924 Great Russian Encyclopedia Online ID 3,102
 0.0045
P998 Curlie ID 2,921
 0.0045
P2949 WikiTree person ID 3,931
 0.0044
P8408 KBpedia ID 2,955
 0.0043
P646 Freebase ID 21,215
 0.0042
P8814 WordNet 3.1 Synset ID 2,759
 0.0042
P774 FIPS 55-3 (locations in the US) 2,891
 0.0042
P4823 American National Biography ID 2,759
 0.0042
P213 ISNI 8,291
 0.0041
P1006 Nationale Thesaurus voor Auteurs ID 4,636
 0.0040
P3219 Encyclopædia Universalis ID 2,658
 0.0039
P691 NKCR AUT ID 4,244
 0.0039
P269 IdRef ID 4,625
 0.0039
P349 National Diet Library ID 2,994
 0.0038
P648 Open Library ID 3,429
 0.0038
P8168 FactGrid item ID 2,729
 0.0037
P5063 Interlingual Index ID 2,374
 0.0036
P8119 HASC 2,332
 0.0036
P2347 YSO ID 2,311
 0.0035
P1207 NUKAT ID 3,941
 0.0034
P3222 NE.se ID 2,286
 0.0033
P2600 Geni.com profile ID 2,956
 0.0033
P7818 French Vikidia ID 2,172
 0.0033
P8462 Political Graveyard politician ID 2,117
 0.0032
P882 FIPS 6-4 (US counties) 2,039
 0.0032
P4839 Wolfram Language entity code 2,681
 0.0031
P5019 Brockhaus Enzyklopädie online ID 2,105
 0.0031