The barcode’s origin story is somewhat in doubt. However, many people recognize April 3, 1973, as its birthday—making the barcode 50 years old.

On this day, the IBM version created by senior engineer George Laurer was approved as the industry standard. Shortly thereafter, the first barcoded product was scanned in Marsh’s supermarket near Troy, Ohio. The item was a 10-pack of Wrigley’s Juicy Fruit gum for $1.39.

The use of the barcode has greatly expanded since 1973. Barcodes are everywhere. The Universal Product […]