What liquor is particularly famous for its durability? (samples from the Napoleonic era are still in use)
original champagne from Champagne
Madeira
Porto
Vermouth
Madeira is a fortified wine made in the Portuguese Madeira Islands, off the coast of Africa. To prevent the wine from spoiling, neutral grape spirits were added. Today, Madeira is noted for its unique winemaking process which involves heating the wine. 
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original champagne from Champagne
Madeira
Porto
Vermouth
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