Earth in Upheaval is the name of a book by Immanuel Velikovsky which lays out his summary of the evidence for cataclysmic upheavals in the history of Earth.
Earth in Upheaval
Which Ice Age?
When we say "ice age" we usually mean the one that ended about 10,000 years ago. In the popular science narrative (SciPop) this was the last of several retreats and advances of polar ice over the last 10,000-40,000 years.
September 15th
Earth in Upheaval is the name of a book by Immanuel Velikovsky which lays out his summary of the evidence for cataclysmic upheavals in the history of Earth. Like a lot of things, it's partly right and partly wrong.