#birth.time  the time when something begins (especially life); "they divorced after the birth of the child" or "his election signaled the birth of a new age"
  exclusion:  dying
  supertype:  outset__beginning__commencement__first__start__kickoff__starting_time__offset  the time at which something begins; "They got an early start"
  subtype:  cradle.birth  birth of a person; "he was taught from the cradle never to cry"
  part of:  lifetime__life__lifespan  the period during which something is functional (as between birth and death); "the battery had a short life"; "he lived a long and happy life"

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