March 13 - In the US, Bryan Adams "Heat of the Night" becomes the first single to be commercially released on cassette. Cassette singles become known as cassingles[?].
April 23 - Carole King sues the owner of her record company, Lou Adler, claiming that she is owed more than $400,000 in royalties. King also asks for rights to her old recordings.
... April 22 - Robert Oppenheimer, physicist (+ 1967)
May 6 - Harry Martinson, swedish author, winner of the Nobel Prize in literature
May 11 - Salvador Dalí, ...