The music industry can thank Glenn Miller's record label for the idea of gold records. Seventy-five years ago today, his song about a train trip became the world's first solid-gold hit.
"Chattanooga Choo Choo" is about a man going home, and promising his sweetheart he'll never roam. By February 10, 1942, more than 1.2 million copies of the song had been sold — and that was no small thing, the biggest seller in years. The record label, RCA Victor, celebrated by presenting Glenn Miller with a trophy during a live radio broadcast.