14 episodes

366 snapshots of earth history in the form of a perpetual calendar, with daily episodes for 2014 and weekly thereafter. Find all the posts at http://historyoftheearthcalendar.blogspot.com

History of the Earth Richard I. Gibson

    • Natural Sciences

366 snapshots of earth history in the form of a perpetual calendar, with daily episodes for 2014 and weekly thereafter. Find all the posts at http://historyoftheearthcalendar.blogspot.com

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