The very first machine that could play back music was the phonograph, which was created by Thomas Edison, but it went through several changes before it was able to play the flat recorded disks that became known as records. The phonograph started its use in 1857 with tin cylinders, but by 1903 the machine had been adapted to use the 12-inch recorded disks.
Edison's company continued to use the cylinders up through the late 1910s, but eventually the records became more popular, causing the original cylinder style of Edison's machine to fall to the wayside. The first million-selling record happened in 1919 and was created by Paul Whiteman and his Orchestra. The song "Japanese Sandman" sold 1 million units, which helped bring records into the mainstream.