PredictionBook transitioning to read-only mode at the end of 2023 ( read more ).

Japanese Misao Okawa, the world's oldest woman, will reach 120 years of age.

Created by refnum on 2014-03-05; known on 2018-03-25

  • refnum estimated 80% on 2014-03-05
  • refnum withdrew the prediction on 2014-03-05

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