Thirty-Fifth Anniversary of the Bar Code

One of the world’s best-known symbols, the U.P.C. comprises a row of 59 machine-readable black and white bars and 12 human-readable digits. Both the bars and the digits convey the same information: the identity of a specific product and its manufacturer.

Originally developed to help supermarkets speed up the checkout process, the first live use of a U.P.C. took place in a Marsh Supermarkets store in Troy, Ohio, on June 26, 1974, when a cashier scanned a package of Wrigley’s gum. It ushered in extraordinary economic and productivity gains for shoppers, retailers and manufacturers alike, with estimated annual cost savings of $17 billion in the grocery sector alone, according to one study.