Although France has only one capital, Paris, the capital of Champagne is Reims. the Champagne comes from the 'Champagne-Ardennes' region in France ; the region's capital city is Reims, East of Paris....
It is called champagne because it is produced in the Champagne region of France. Only the wine produced there, with few exceptions, can be called Champagne.
No, it is a sparkling wine from California. However, many people prefer it in blind taste tests to Champagnes. Champagne must be produced in the Champagne region of France. The name is legally...