In what year was the Douro Valley established as the world’s first demarcated wine region, setting rigorous production standards?
Answer
1756
The Douro Valley holds the significant historical distinction of being recognized as the world's first demarcated wine region. This official designation, which established the initial framework for controlling quality and origin, was set in the year 1756. This demarcation process was crucial for maintaining the integrity of Port production standards long before many other renowned wine regions established similar protective measures. Oversight of these rigorous standards is currently managed by the Instituto dos Vinhos do Douro e Porto (IVDP).

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