What was the first gold record and the first gold album?

Glenn Miller was presented with a gold-covered master of his recording “Chattanooga Choo Choo” on his radio program of February 10, 1942.

The record, released in conjunction with the 1941 movie Sun Valley Serenade, had climbed past the 1 million mark a few months after its release.

The original 1949 Broadway cast recording of Oklahoma! became the first long-playing album to sell more than 1 million copies.

By 1956, 1.75 million copies had been sold.