early childhood
type: Concept
broader: age distribution

elderly person
type: Concept
broader: age distribution

young person
type: Concept
broader: age distribution

age distribution
definition: The American population continues to grow older, with the median age exceeding 40 in many states and the number of older men, in particular, increasing. Age data has been well tracked over American history: it is one of the few pieces of information, along with sex, that was asked in the original 1790 census and has been asked on every census since. [Source: Multicultural America: A Multimedia Encyclopedia; Age Distribution]
narrower: young person
narrower: elderly person
narrower: early childhood
narrower: children (age group)
broader: composition of the population
type: Concept

children (age group)
type: Concept
broader: age distribution

concepts
type: Collection
type: ConceptGroup
member: age distribution

composition of the population
type: Concept
narrower: age distribution