1895 June 10: Immanuel Velikovsky born in Vitebsk, Belarus
1895 July 27, Elisheva Velikovsky (née Kramer) born
1923 April 15: Immanuel Velikovsky marries Elisheva Kramer in Berlin
1928 March 3: Biela Velikovsky (neé Grodensky), the mother of Immanuel, dies in Palestine
1937 December 16: Simon Velikovsky, the father of Immanuel, dies
1939 July 26: Immanuel Velikovsky, his wife and two daughters, arrive in the USA from Israel.
1942 November 23: Velikovsky attempts unsuccessfully to file an Affidavit securing priority for the results of his research.[1]”Affidavit“, Nov 23, 1942. Unpublished. Online at the Velikovsky Archive
1946 August 11: John J. O’Neill‘s New York Herald Tribune article, is the first to publicly mention Velikovsky’s ideas.