Rongorongo
In 2019, only 25 texts were seen as authentic. These texts and artefacts are distributed over diffent museum in the world, none remains on the Easter Island. The total text corpus is about 14,000 "letters", made of about 600 different glyphs. The writing was probably used for religious puroposes; only very few people used it. The age of the writing is unknown. In the 19th century, Europeans received the first objects with writing on them. Some glyphs show plants that do not exist, or have never existed on Easter Island. One example is the Breadfruit, which has never existed on Eastter Island. The knowledge of the plant must have been passed on from the first settlers, from generation to generation.