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Oct 11, 2025
9:58 PM
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Thomas Edison produces the first machine that can record and playback sound in 1877. The flat disc is first patented in 1888. The concept is very simple: a sound wave is captured on the record as a physical wave in the disc, most often shellac (the shell of the lac beetle). 78 rpm, hence the name 78s. Other speeds, such as 80, 90 and 100 rpm are not uncommon. In addition to speed, the equalization and stylus size varies – either to improve the sound or to dodge someone else’s patent. In the 1950s they slowly give way to the LP or microgroove record, though in some parts of the world they remain common well into the 1960s.
Why is it important to preserve 78rpm discs?
The cultural record of the 20th century is different from all other periods of human history by the presence of audiovisual recordings. Prior to 1877, there was no way to record the sound of a nursery rhyme being read at bedtime, a musical or theatrical performance, or the world around us. During the ensuing 147 years, formats came and went as technology and preferences changed. Yet for nearly half that time, 78rpm discs were the way we learned about each other and entertained the world. It was a time when the world became a much smaller place. The invention of the automobile and the airplane, the expansion of the railroads, the telephone and radio, to the dawn of the space age, 78s were there. Through 78s, we could hear traditional music from Hawaii long before it was a state. American popular music – jazz, fox trot, big bands, even the Beatles – spread out across the globe, well ahead of Hollywood, and long before television. A thousand people might attend a concert, a theater performance, a speech, or a dramatic reading by Charles Dickens. With the 78, it became possible for those experiences to be shared and repeated, and spread far and wide, not once and done.
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