Baby boomers were born after World War II.
 In the early 21st century, baby boomers in some developed countries are the single biggest cohort in their societies due to subreplacement fertility and population aging
 Steve Gillon has suggested that one thing that sets the baby boomers apart from other generational groups is the fact that "almost from the time they were conceived, boomers were dissected, analyzed, and pitched to by modern marketers, who reinforced a sense of generational distinctiveness"

