I love red wine, which is a type of wine made from dark-colored (black) grape varieties.
When did red wine become popular in history?
The juice from most purple grapes has been used as drinks for centuries! 
How does a wine become alcohol,  i thought grapes are just fruits?
Its a long process actually that begins with vinification, which is the production of wine, starting with selection of the fruit, its fermentation into alcohol, and the bottling of the finished liquid.
What's the difference between red wine and white wine?
Well it depends on the type of produce, for example, white wine is produced by the alcoholic fermentation of the non-colored pulp of grapes
Which country did wine originate from?
Different types of wine have been found at different times, for example White wine has existed for at least 2500 years and was made in what we now call France