06/13/2026
June 13: In 1929, the Portuguese government officially published the definitive statutory decree establishing the Região Demarcada do Vinho Verde in the lush, rainy Minho region of northwest Portugal.
For centuries, the small, highly acidic, slightly effervescent white and red wines of the Minho were consumed purely as cheap peasant refreshments. However, as rogue blenders began shipping low-grade, flat table grapes into the region to mimic the style and undercut local farmers, the region's economic survival was threatened.
The law strictly drew the geographic borders of the Vinho Verde appellation and mandated that only native varieties—such as Alvarinho, Loureiro, and Trajadura—could legally carry the name. This gave Vinho Verde the international legal protection it needed, eventually transforming it from a rustic local secret into one of Portugal’s top global exports.