what constitutes a generation
Generation is the act of producing offspring. In kinship terminology, it is a structural term designating the parent-child relationship. It is also known as biogenesis, reproduction, or procreation in the biological sciences. The term has also been used in different times and places for a number of different subcultures or countercultures since the 1950s. 2  Millennials, also known as the Millennial Generation, or Generation Y, is the demographic cohort following Generation X.