The country of Spain has a wine heritage that is three thousand years old with the first vineyards known to be planted by the Phoenicians in Andalucia. Spain, Italy, and France yearly trade places as the top wine-producing country in the world. Spain is a very diverse country, divided into 17 regions, known as "autonomias", all known for their own indigenous grapes and distinct wine styles. Spain has unique age categories for its wines, which require a designated amount of time in the cask, from short-aged Crianza to long-aged Gran Reserva.