O lado bom dos custos de transporte: a origem do vinho do Porto

The area (Porto) itself is one of the oldest wine-growing regions in the world - officially demarcated back in 1756, a century before Bordeaux.
And port itself was created almost by mistake. To stop wine going bad on its sea journey to England, British traders fortified it with brandy.
The new sweet taste and extra kick was an immediate hit with those who could afford it.