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We do know when the first winery was discovered which was in 4100 BC in a cave in the mountains of Armenia. They discovered a press to press the grapes, jars for fermentation along with cups and drinking bowls. There is also evidence of drinking wine even before this date however, this is the first known example of first full wine production. Given how sophisticated the winery was, it is highly likely that wine was invented even before that date.
When you think of the simplicity of the wine process though, the early date of the first winery isn’t too surprising. If someone accidentally left grapes in a jar, overtime the grapes will decompose and produce wine naturally. Making wine really is just the controlled process of rotting of grapes. The inventor of wine was likely someone who did just that: forgot about some grapes in a jar. A year later they rediscovered that jar, possibly being quite hungry, and decided to take a drink. What a surprise that must have been!