April 4 - RCA Victor Records[?] announces that it will release all pop singles in mono and stereo simultaneously, the first record company to do so. Elvis Presley's single, "Stuck on You," is RCA's first mono/stereo release.
... low-lying Amazon Rainforest in the north, and a more open terrain of hills and (low) mountains to the south, home to most of Brazil's population and its ...