Of all the mysteries about Easter Island, none is as unresolved or as controversial as rongorongo, the enigmatic script rust reported in the latter half of the 19th century. A lot of ink has been spilled about Easter Island's rongorongo and no shortage of vitriol, too. If you thought disagreements over Heyerdahl's defunct diffusionist theories took a hyperbolic course, then you haven't done your rongorongo homework.
"Rongorongo and the Rock Art of Easter Island,"
Rapa Nui Journal: Journal of the Easter Island Foundation: Vol. 18
, Article 2.
Available at: https://kahualike.manoa.hawaii.edu/rnj/vol18/iss2/2