How did champagne get its name?

Answer 1

True 'Champagne' is made exclusively in the Champagne region of France. The rest, like 'California Champagne' is not truly Champagne, but a similar sparkling wine.

France recently expanded the region within Champagne where Champagne can be produced. Before the expansion, sparkling wine produced a few yards across the line of demarcation could not be sold as "Champagne." Now it can. When the lines were re-drawn in the early 20th century, the result was known as the Champagne Riots or the Champagne War. Such arbitrary changes can result in enormous price changes in wine that is completely indistinguishable.