query: SELECT ?item 
  WHERE
  {    
  	?item wdt:P31 wd:Q11424 .   
    	?item wdt:P577 ?date   
      FILTER (	datatype(?date) = xsd:dateTime 
      			&& year(?date) = year(now())
      			&& ?date < now()
             )   
  }   
  ORDER BY DESC(?date) ?item 
  LIMIT 1000