And now a page from our "Sunday Morning" Almanac: January 10th, 1949, 67 years ago today ... the day RCA Victor unveiled a new breed of phonograph record -- the 45. Just seven inches across, with a ...

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Before streaming services and digital downloads, millions of people got their music fix from the 45 rpm single. First rolled out by RCA in 1949, the 7-inch wax disc with its distinctive large central ...

1949: The 45-rpm record is introduced by RCA. Can rock 'n' roll be far behind? Flat disc records began replacing the cylinder for reproducing recorded sound as early as 1887. The original standard, ...