Javanese language
Most of the original vocabularies of this language have nothing in common with the standard Javanese language (Surakarta-Yogyakarta region) neither morphology nor phonetics. Indeed, the Cirebonese language used in Cirebon and with those in Indramayu, although are part of the Javanese language; have huge differences with the "standard Javanese language", which is the language taught in schools that held to the Solo Javanese language. Thus, before the 1970s, textbooks from Solo can no longer be used because it was too difficult for students (and perhaps also, the teacher). Therefore, in the 1970s, textbooks were replaced with Sundanese textbooks. However, it turns out that the idea was a misconception (of the Cirebonese language) until movement was emerged to replace the textbook in the language used in the region, namely Cirebonese dialect of the Javanese language. Nevertheless, publishers that supported of regional language to be taught in schools did not include the word "Javanese language of the Cirebonese dialect" again in the following year, but instead used the term "Cirebonese language". It has also been done on published books by supporters of Cirebonese as a teaching subject in 2001 and 2002.