Immanuel Velikovsky was a Russian author of a number of books, including Worlds in Collision, in which he claimed that impacts and near encounters between bodies in the Solar System can explain various dramatic events in human history. His theories have been effectively demolished by Carl Sagan and others.¹

 

Reference

1. Goldsmith, Donald, ed. Scientists Confront Velikovsky. Ithaca, N.Y.: Cornell University Press (1989).