Worlds in collisionWith this book Immanuel Velikovsky first presented the revolutionary results of his 10 year long interdisciplinary research to the public, founded modern catastrophism based on eyewitness reports by our ancestors shook the doctrine of uniformity of geology as well as Darwin's theory of evolution, put our view of the history of our solar system, of the Earth and of humanity on a completely new basis and caused an uproar that is still going on today.