Harris-Mann_Historic_Temp_Chart

2 thoughts on “Harris-Mann_Historic_Temp_Chart

  1. Kathy Shaner October 10, 2019 / 7:49 pm

    I am a weather hobbiest and a middle school history teacher. I’m fascinated by the influence of weather on historical outcomes.

    • Russ Steele October 11, 2019 / 3:36 pm

      Kathy, so am I. Just finished reading a book about the Ice Ages and how discovered and dated. Now reading books and watch YouTube videos about the Younger-Dryas period and the impact it had on ancient civilizations that seem to have access to some stone shaping technology and an understanding of astronomical cycles.

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