Public matter or Zen Buddhist riddle
In Zen Buddhism, a koan is a paradoxical anecdote or riddle used to demonstrate the inadequacy of logical reasoning and to provoke enlightenment. As a name, it is a modern adaptation of this spiritual concept, often chosen for its philosophical depth and minimalist sound. It is distinct from the Irish name Rowan or the German name Koen.
US births per 5-year period, 1990–present (SSA data).