Generation X is a term used to describe generations in many countries around the world. The exact demographic boundaries of Generation X are not well defined, depending on who is using the term, where and when. According to generation researchers Neil Howe and William Strauss, Generation X includes anyone born from 1961 to 1981 in North America . The term is used in demography, the social sciences, and marketing, though it is most often used in popular culture. The generation's influence over pop culture began in the 1980s and may have peaked in the 1990s.
One of the defining factors of Generation X is the transitions resulting from the decline of colonial imperialism to the fall of the Berlin Wall and the end of the Cold War.