Wikidata:Database reports/identical birth and death dates/1

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These are pairs of items with identical dates in date of birth (P569) and date of death (P570). Some should be merged (duplicates), others not: different persons with the same dates (coincidence or virtual twins) or incorrect dates (mixup).

The list is updated regularly (daily?) by bot (items with corrected or removed dates can take a few days to be removed from the list).

How probable are false positives?

  • (A) Items for people with both dates: 3,037,823 ref
  • (B) Items for people with two people with the same date of birth and date of death (Q20978290): 3,229 ref
  • Ratio (B/A): 1.06 ‰
  • (C) There are 306,282 ref redirects to items with both dates, i.e. two items were merged
  • Ratio (C/A): 10.08 %
  • False positives (B/C): 1.05 % (This underestimates it as it assumes that all items had both dates before being merged).

Items in the list below could be:

Type Sample Suggested approach
Items about the same person merge the two items
Items about the same person merge the two items
Items about the same person delete the redirect-sitelink and merge the two items. Special:MergeItems can sometimes merge them directly.
Items about the same person merge the two items
Items about the same person delete the sitelink to the disambiguation page and merge the two items (sitelink didn't get updated on pagemove)
find a new item for the disambiguation page or create it
Items about likely about the same person, but this isn't conclusive add said to be the same as (P460) to each, do not merge them
Items about different people, with incorrect dates and possibly mixed-up sitelinks correct dates and/or fix sitelinks. Don't merge. If in doubt, use the articles' talk pages or WD:IWC
Items about a person and items with dates they shouldn't have remove dates from the item that shouldn't have them
Items for identical persons, but with two articles at the same Wikipedia possibly suggest to Wikipedia to merge both adding Template:Merge (Q6919004) to each article
mark one with instance of (P31): Wikimedia duplicated page (Q17362920) and qualifier of (P642) linking to the other item
Alternatively, interlink both with said to be the same as (P460)
possibly move statements to the one item that isn't marked with Wikimedia duplicated page (Q17362920)
Once the merge of the articles completed, the items can be merged
False positives: two different persons, with same dates of birth and death

double-check dates, ideally with references
interlink both items with different from (P1889) and qualify with criterion used (P1013) = two people with the same date of birth and date of death (Q20978290)
add items to False_positives

Already merged/fixed some of the below (items redirected, labels and statements appear then as identical) do nothing ;)

Steps:

  • Are both items about the same person?
    • If yes:
      • Can the items be merged?
        • If yes: merge them. In the next update, the pair will disappear from the list
        • If no: tag the two articles at Wikipedia for merging. In the next update, the pair will be moved to the "marked for merging" section of the main list.
    • If no:
      • Are the instance of (P31) values correct?
        • If no: correct them
      • Should the item have date of birth (P569)/date of death (P570)?
        • If no: remove them. In one of the next updates, the pair will disappear from the list.
      • Are the dates correct?
        • If no: correct them. In one of the next updates, the pair will disappear from the list.
        • If yes: add the pair to "false positives". In the next update, the pair will disappear from the list.

Update frequency:

  • Removal of merged items: generally daily
  • Removal of items marked as different: generally daily
  • Removal of items with corrected dates: generally weekly (based on Wikidata dumps)
  • Merge of items identified as duplicates and marked for merging at a Wikipedia (if they still include identical dates): occasionally by bot once the merger at Wikipedia is completed.
  • Addition of newly identified items: generally weekly (based on Wikidata dumps)

Tools:

DOBDOD Merged Person 1 Person 2 P31 (#1) P31 (#2) P21 (#1) P21 (#2) P27 (#1) P27 (#2) P106 (#1) P106 (#2) Diff from TO DO
25 December 1861
25 December 1861
12 November 1946
12 November 1946
Madan Mohan Malaviya Mahamana Malaviya human human, Wikimedia duplicated page male British Raj lawyer, philosopher, journalist, poet, politician, revolutionary, freedom fighter academician, journalist, politician, lawyer, official, poet - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
12 November 1865
23 April 1896, 12 November 1865
11 May 1936
17 December 1964, 11 May 1936
Nōsho Benjirō Fumiko Nōsho human human male female Japan composer singer - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
7 October 1853
4 November 1868
30 May 1917
20 March 1939
František Jaroslav Rypáček Karel Ryska human human male male Austria-Hungary pedagogue, writer, poet, teacher, historian, literary historian, local historian, high school teacher, editing staff technician - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2

28 March 1887
17 November 1940
17 November 1940
Jamaluddin Muhammad Kasyful Anwar human human male male Indonesia Indonesia 'ālim 'ālim - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
20 July 1893
20 July 1893
13 October 1955
13 October 1955
Eusebio Fernández Muñiz Facundo Pascual Quilis human human male male Spain businessperson, sports executive - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
30 December 1909
30 December 1909
18 June 1979
18 June 1979
no label no label human human male male Egypt Khedivate of Egypt, Sultanate of Egypt, Kingdom of Egypt, Republic of Egypt, United Arab Republic, Egypt radio personality, teacher - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
30 June 1911
22 January 1939
14 August 2004
Czesław Miłosz Stanisław Kwiatkowski human human male male Poland, United States of America, Lithuania Poland poet, diplomat, writer, essayist, translator, pedagogue, university teacher, literary historian sociologist, political scientist, soldier - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
30 June 1911
1929
14 August 2004
20 January 2022
Czesław Miłosz Jerzy Waglewski human human male male Poland, United States of America, Lithuania poet, diplomat, writer, essayist, translator, pedagogue, university teacher, literary historian - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
22 January 1939
1929

20 January 2022
Stanisław Kwiatkowski Jerzy Waglewski human human male male Poland sociologist, political scientist, soldier - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
28 January 1922
28 January 1922
17 October 1996
17 October 1996
Oscar Badrig Westendorff Orlando Moscoso human human male male Brazil Brazil politician businessperson, politician - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
12 December 1935
27 January 2014
Epimaco Velasco Mariano Mison human human male male Philippines Philippines lawyer, police officer lawyer - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
14 May 1952, 16 May 1952
16 May 1952
1 January 2020
1 January 2020
Shinji Katsura Katsura Shinnosuke human human male male Japan Japan rakugoka rakugoka - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
20 September 1772
20 September 1772
30 December 1804
30 December 1804
no label Karl Trach von Birkau human human male male - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
27 October 1807
27 October 1807
1 May 1886
1 May 1886
Charles Lemettre Amelie Lambelin human human male female cooper - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
27 May 1816
27 May 1816
26 April 1897
26 April 1897
Hamilton Udell Cashow Daniel Underhill Cashow human human male male United States of America United States of America - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
19 November 1831
19 November 1831
19 September 1881
19 September 1881
James A. Garfield Aboud bin Lādin human human male male United States of America politician, military officer, lawyer, statesperson, writer - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
11 July 1838
11 July 1838
31 July 1902
31 August 1902, 31 July 1902
Gaetano Negri Antonín Pinkava human human male male Kingdom of Italy politician, geologist, translator, military personnel, official, historian, essayist, literary critic, mayor teacher, choir director, head teacher, opinion journalist - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
31 May 1856
31 May 1856
7 June 1945
7 June 1945
Jan Nálevka Jan Vřesnický human human male male Austria-Hungary, Czechoslovakia writer, poet teacher - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
29 September 1860
29 September 1860
26 July 1941
1941, 26 July 1941
Marie-Frédéric Knapen Achille Knapen human human male male engineer civil engineer, engineer - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
28 October 1875
28 October 1875
17 February 1922
17 February 1922
Kiril Marichkov Kiro Marichkov human human male male Bulgaria Bulgaria architect architect - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
2 February 1879
2 April 1879, 2 February 1879
7 February 1958
7 February 1958
Hjalmar Davidsen Tomáš Koutný human human male male Denmark Czechoslovakia film director, film producer politician, journalist - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
12 October 1879, 10 December 1879, 17 September 1879
10 December 1879
6 December 1959, 26 December 1959
26 December 1959
Gottlieb Schuller Harriet Miller Greenway human human male female Austria glass painter, mosaicist - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
23 December 1885
23 December 1885
11 December 1969
11 December 1969
Josef Chmelař Josef Horal human human male male Czechoslovakia opinion journalist, editing staff, writer journalist, writer, opinion journalist, editing staff - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
13 March 1890
13 March 1890
14 September 1951
14 September 1951
Fritz Busch Hans Busch human human male male Germany conductor, pianist, music director director - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
18 September 1890
18 September 1890
24 June 1958
24 June 1958
Julian Stemporowski Stepan Soroka human human male male farmer farmer - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
6 February 1893, 6 April 1892
6 April 1892
1 October 1960
1 October 1960
Josef Dvořák Josef Dvořák human human male male Czechoslovakia, Cisleithania military leader - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
1 January 1893
1 January 1893
1 January 1960
1960
Frankie Fleming Stylianos Papadopoulos human human male male Greece boxer - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
1893
1 January 1893
1960
1960
Anna Boska Stylianos Papadopoulos human human female male Poland Greece - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
9 July 1895
9 July 1895
29 September 1915
29 September 1915
André Imhaus Émile Georges François Imhaus human human male male France France - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
1899
1 January 1899
1967
1 January 1967
Zofia Majewska Volf Motylev human human female male Poland Soviet Union, Russian Empire farmer economist, university teacher - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
1899
1 January 1899
1967
1 January 1967
Antanas Budzinskas Volf Motylev human human male male Lithuania Soviet Union, Russian Empire economist, university teacher - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
21 February 1903
21 February 1903
10 December 1995
10 December 1995
Jožka Králíková Josefa Mattesová human human female female Czechoslovakia opera singer librarian - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
28 June 1905
28 June 1905
16 February 1988
16 February 1988
Francesco Barberi no label human human male male Kingdom of Italy, Italy librarian, bibliologist, palaeographer, university teacher Francesco Barberi - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
18 November 1905
1906, 5 November 1905, 18 November 1905
14 November 1983
14 November 1983
Friedrich Kühnreich no label human human male female merchant pedagogue, university teacher - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
8 April 1906
8 April 1906
16 October 1992
16 October 1992
Božena Komancová-Kuhnová Marta Kuhnová-Hliněnská human human female female painter painter - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
30 June 1911
30 June 1911
14 August 2004
14 August 2004
Czesław Miłosz Jerzy Mizgalski human human male male Poland, United States of America, Lithuania Poland poet, diplomat, writer, essayist, translator, pedagogue, university teacher, literary historian political scientist, lecturer - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
30 June 1911
30 June 1911
14 August 2004
14 August 2004
Czesław Miłosz Jacek Kiełpiński human human male male Poland, United States of America, Lithuania poet, diplomat, writer, essayist, translator, pedagogue, university teacher, literary historian journalist - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
22 January 1939
30 June 1911

14 August 2004
Stanisław Kwiatkowski Jerzy Mizgalski human human male male Poland Poland sociologist, political scientist, soldier political scientist, lecturer - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
22 January 1939
30 June 1911

14 August 2004
Stanisław Kwiatkowski Jacek Kiełpiński human human male male Poland sociologist, political scientist, soldier journalist - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
1929
30 June 1911
20 January 2022
14 August 2004
Jerzy Waglewski Jerzy Mizgalski human human male male Poland political scientist, lecturer - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
1929
30 June 1911
20 January 2022
14 August 2004
Jerzy Waglewski Jacek Kiełpiński human human male male journalist - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
30 June 1911
30 June 1911
14 August 2004
14 August 2004
Jerzy Mizgalski Jacek Kiełpiński human human male male Poland political scientist, lecturer journalist - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
30 September 1911
30 September 1911
24 October 2002, 23 October 2002
24 October 2002
Leon Sazama Leon Dlažov human human male male Czechoslovakia, Czech Republic dentist, stomatologist, teacher physician, stomatologist, teacher, scientist, opinion journalist - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
19 December 1911
19 December 1911
24 September 2004
24 September 2004
Johannes Franciscus Anemaet no label human human male male Kingdom of the Netherlands painter military personnel, painter - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
11 April 1922
11 April 1922
5 January 1982, 5 January 1981
5 January 1981
Jaromír Netík Jan Fousek human human male male Czechoslovakia journalist, announcer journalist, opinion journalist - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
10 October 1928, 1 October 1928
1 October 1928
28 September 2015
28 September 2015
Abdel Tawab Jusef Virgil Hays human human male male Egypt writer, children's writer, novelist, translator animal scientist - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
1929, 13 November 1929
13 November 1929
17 September 2017
17 September 2017
Stanley Weinstein Ken Russell human human male male United States of America religious studies scholar sport cyclist - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2
22 April 1932
22 April 1932
4 August 2024
4 August 2024
Fortunato Nari Fortunato Nari human human male male Argentina writer, poet, playwright writer, poet, dramaturge - •correct dates
merge
•markasduplicate
markdifferent
MxM1 MxM2