article_snippet.sent: Gloriavale residents do not hold celebrations for birthday parties or Christmas .
article_snippet.sent: The community, which isolates Gloriavale from the outside world, was founded by Cooper. 
article_snippet.sent: Birth control is non-existent. '
highlights_snippet.sent: Residents of Gloriavale isolate Residents of Gloriavale from the outside world .
  
highlights_snippet.sent: With a population around 500, Residents of Gloriavale do not use birth control .
  