References Detail back created at: 2014-03-03 Media Type: Article in Journal Author Downes, T. W. Year: 1928 Title: The Game of Koruru, or Knuckle-Bones. As played by the Upper Whanganui River Maori Girls Volume: 37 Page No: 136-138 JournalJournal of the Polynesian Society Keywords Time Period 1500 - 2000 AD European timeline Modern Super Region Polynesia Class of Artefact gaming piece Theme social identity Material bone Miscellaneous worked bone back