About: http://dbpedia.org/resource/Windows_NT_4.0/releaseDate/Start_date_and

Property	Value
dbpprop:startDateAndAgeProperty	11 (xsd:integer) 30 (xsd:integer) 1999 (xsd:integer)
dbpprop:wikiPageUsesTemplate	dbpedia:Template:start_date_and_age
is dbpprop:releaseDate of	dbpedia:Windows_NT_4.0

About: http://dbpedia.org/resource/Windows_NT_4.0/releaseDate/Start_date_and_age