Getting all wikipedia articles with precise time - sparql

Question

Some wikipedia articles has precise timestamp in infobox, like this one:
https://en.wikipedia.org/wiki/Apollo_11
(Launch date: July 16, 1969, 13:32:00 UTC)
or:
https://en.wikipedia.org/wiki/Remembrance_Day_bombing
(Date: 8 November 1987 10:43 (GMT))
Is there a way to get a list of all articles like this? Seems like it possible with SPARQL

Answer 1

AFAIK It would be possible, but it require to know what wiki property is linked to the date ( or date time ) field of the infobox; let me explain with an example:
PREFIX : <http://dbpedia.org/resource/>
PREFIX time-of-spacecraft-launch: <http://www.wikidata.org/entity/P619c>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT ?entity_label, ?property_label, ?time_of_spacecraft_launch WHERE {
:Apollo_11 owl:sameAs ?wikidata_entity .
?wikidata_entity time-of-spacecraft-launch: ?time_of_spacecraft_launch .
?wikidata_entity rdfs:label ?entity_label .
?wke_prop ?property_rel time-of-spacecraft-launch:.
?wke_prop rdfs:label ?property_label .
FILTER (LANG(?property_label)='en' && LANG(?entity_label)='it')
}
click here to se the result
Now we can gel all the article with the same kind of information simply by removing the where condition on Apollo_11:
PREFIX : <http://dbpedia.org/resource/>
PREFIX time-of-spacecraft-launch: <http://www.wikidata.org/entity/P619c>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT ?entity_label, ?property_label, ?time_of_spacecraft_launch WHERE {
?wikidata_entity time-of-spacecraft-launch: ?time_of_spacecraft_launch .
?wikidata_entity rdfs:label ?entity_label .
?wke_prop ?property_rel time-of-spacecraft-launch:.
?wke_prop rdfs:label ?property_label .
FILTER (LANG(?property_label)='en' && LANG(?entity_label)='it')
}
see the result herefy
in some cases may be useful to simplify the query:
PREFIX : <http://dbpedia.org/resource/>
PREFIX time-of-spacecraft-launch: <http://www.wikidata.org/entity/P619c>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT * WHERE {
?wikidata_entity time-of-spacecraft-launch: ?time_of_spacecraft_launch .
?wikidata_entity rdfs:label ?entity_label .
FILTER (LANG(?entity_label)='en')
}
ORDER BY DESC(?time_of_spacecraft_launch)
see the result here