 It is also often used as an introduction into endangered varieties with very few speakers like Maya (2001), Aromanian (2006) or Banat Bulgarian (2017).It is one of the few modern books to have been translated into Latin, as "Regulus, vel Pueri soli sapiunt" in 1961 by Auguste Haury (1910–2002) and as "Regulus" in 2010 by Alexander Winkler.In 2005, the book was also translated into Toba Qom, an indigenous language of northern Argentina, as "So Shiyaxauolec Nta'a".