The word "classic" came to us from the Latin language, where "classicus" meant "exemplary". In a broad sense, classics call something classical, well-established. And what is a classic in the narrow sense?
In a narrow sense, classics are worksimperishable value, works of outstanding writers, artists, and science, who have become recognized in society. For example, the classics in the literature are well-known writers whose work we study from the school bench, and sometimes even earlier: Pushkin, Lermontov, Yesenin, Tolstoy, Tyutchev, Fet, etc. In their works the authors raise so eternal topics that we periodically we return to them, quote, remember and think about them. The real classic sweeps through the centuries and does not lose its relevance and significance through time. Classics covers not only the sphere of literature or art - for example, some works of a scientist can also be classics, or works of a musician. For example, Beethoven's sonatas are classics, and all classical music is called "classics".
Also, the classic is also a period in the history of ancient Greek art, dating from 5-4 centuries BC and characterized by reliance on ancient traditions in art.
In sports terminology, too, there is the word "classic". So briefly called the classical move - a way of movement in cross-country skiing, different from the ridge move.
That's what a classic is. Also you can be useful article. What is classicism.