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The Age of Fire and Gravel is a companion book to Donnelly's more well-known work Atlantis: The Antediluvian World. In Ragnarok, Donnelly argues that an enormous comet hit the earth 12,000 years ago, resulting in widespread fires, floods, poisonous gases, and unusually vicious and prolonged winters. The catastrophe destroyed a more advanced civilization, forcing its terrified population to seek shelter in caves.
This book has 382 pages in the PDF version, and was originally published in 1883.
Production notes: This ebook of Ragnarok: The Age Of Fire And Gravel was published by Global Grey in 2018.
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