<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> A counterculture (also written counter-culture) is a subculture whose values and norms of behavior differ substantially from those of mainstream society, often in opposition to mainstream cultural mores . A countercultural movement expresses the ethos and aspirations of a specific population during a well - defined era . When oppositional forces reach critical mass, countercultures can trigger dramatic cultural changes . Prominent examples of countercultures in Europe and North America include Romanticism (1790--1840), Bohemianism (1850--1910), the more fragmentary counterculture of the Beat Generation (1944--1964), followed by the globalized counterculture of the 1960s (1964--1974), usually associated with the hippie subculture and the diversified Punk subculture of the 1980s . </P> <P> John Milton Yinger originated the term "contraculture" in his 1960 article in American Sociological Review . Yinger suggested the use of the term contraculture "wherever the normative system of a group contains, as a primary element, a theme of conflict with the values of the total society, where personality variables are directly involved in the development and maintenance of the group's values, and wherever its norms can be understood only by reference to the relationships of the group to a surrounding dominant culture ." </P>

What is an example of a counterculture in sociology