I love going on wine tasting tours in the Niagara region
I've never gone wine tasting before but I know about it.
It is a great experience.  Not only do you get buzzed but you learn how to drink wine properly.  It sounds pompous but it really makes a difference.
It really does sound like a great time, as it is a sensory evaluation of the wine.
Depending on where the wine hits your tongue it tastes completely different.  This is why different types of wine are served in different glasses 
I know what you mean. Also, wine tasting has been around since ancient times.
Did the Romans or Greeks have wine tastings similar to common day wine tastings?
Not really, since wine tasting has been around since the 14th century.