About: http://dbpedia.org/resource/GNU_Compiler_Collection/released/start

Property	Value
dbpprop:startDateProperty	5 (xsd:integer) 23 (xsd:integer) 1987 (xsd:integer)
dbpprop:wikiPageUsesTemplate	dbpedia:Template:start_date
is dbpprop:released of	dbpedia:GNU_Compiler_Collection

About: http://dbpedia.org/resource/GNU_Compiler_Collection/released/start_date