Wikidata

The Genesis of WikiData

The Genesis of WikiData

Structure

https://www.mediawiki.org/wiki/Wikibase/DataModel/Primer

https://upload.wikimedia.org/wikipedia/commons/c/c2/Wikibase_JavaScript_Data_Model_1.0.svg

Example

Æthelstan King of the English - 927-939

• https://www.wikidata.org/wiki/Q170017

Position Held

• https://www.wikidata.org/wiki/Property:P39

Queen Victoria

• https://en.wikipedia.org/wiki/Queen_Victoria
• https://www.wikidata.org/wiki/Q9439
• http://royal-family.bitplan.com/index.php/Queen_Victoria

Entity:Queen Victoria

Statements
PropertyId/name	value
P18/image
P569/date of birth	24 May 1819
P39/position held	Q9134365/Monarch of the United Kingdom qualifiers -> start:20 June 1837, end:22 January 1901, replaced by:https://www.wikidata.org/wiki/Q20875
P570/date of death	22 January 1901
P20/place of death	Osborne House
P21/sex or gender]	Q6581072/female

Descendants of Queen Victoria

# WikiData SPARQL Query
#
# Wolfgang Fahl 2018-01-06
#
# get childen of queen victoria
SELECT ?child ?childLabel ?genderLabel ?dob
WHERE {
#  
# child
# https://www.wikidata.org/wiki/Property:P40
# Queen Victoria
# https://www.wikidata.org/wiki/Q9439
  wd:Q9439 wdt:P40+ ?child.
# gender
# https://www.wikidata.org/wiki/Property:P21
  ?child wdt:P21 ?gender.
# date of birth
# https://www.wikidata.org/wiki/Property:P569         
  ?child wdt:P569 ?dob
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
ORDER BY ?dob

try it!

Import

• https://www.wikidata.org/wiki/Wikidata:Data_Import_Guide
• https://www.wikidata.org/wiki/Q2140665
• https://github.com/maxlath/wikidata-cli
• https://www.wikidata.org/wiki/Wikidata:Tools/External_tools

Tools

• https://github.com/maxlath/wikidata-cli/blob/master/docs/write_operations.md#wd-create-item

What Links Here

• https://www.mediawiki.org/wiki/API:Presenting_Wikidata_knowledge