In later years, Katharevousa was used for official and formal purposes (such as politics, letters, official documents, and newscasting), while Demotic Greek (δημοτική, "dimotiki") or popular Greek, was the daily language. This created a diglossic situation whereby most of the Greek population was excluded from the public sphere and advancement in education unless they conformed to Katharevousa. In 1976, Demotic was made the official language, and in 1982 Andreas Papandreou abolished the polytonic system of writing; by the end of the 20th century full Katharevousa in its earlier form had become obsolete. Much of the vocabulary of Katharevousa and its grammatical and syntactical rules have influenced the Demotic language, so that the project's emphasis has made an observable contribution to the language as it is used today. Modern Greek might be argued to be a combination of the original Demotic and the traditional Katharevousa as stressed in the 19th century, also with institutional input from Koine Greek. Among Katharevousa's later contributions are the promotion of classically based compounds to describe items and concepts that did not exist in earlier times, such as "newspaper", "police", "automobile", "aeroplane" and "television", rather than borrowing new words directly from other languages.