In Spain and increasingly globally, a New Year's Eve tradition called 'Las doce uvas de la suerte' involves eating 12 grapes at midnight. Each grape symbolizes one month of the coming year, with the ritual believed to bring good luck, happiness, and success. Originating in Spain in the late 19th or early 1900s, possibly from wealthy families inspired by French customs or as a marketing strategy by grape farmers, the tradition has gained modern popularity through social media and cultural references.