Rhone Rangers wines are: The main red varieties used in Rhône Rangers wine are Carignan, Cinsault, Counoise, Grenache, Mourvèdre, Muscardin, Syrah, Piquepoul Noir, Terret noir and Vaccarèse. Durif is a grape from southwest France, widely grown in California as Petite Sirah and is permitted in Rhone Rangers wines. In 2002, after DNA testing by ampelographers showed that Durif was a cross between Peloursin and the popular Rhône grape Syrah, Petite Sirah was officially voted in as a member of the Rhône Ranger varieties. The main white varieties are Bourboulenc, Clairette blanc, Grenache blanc, Marsanne, Muscat Blanc à Petits Grains, Picardin, Picpoul blanc,
History of manifolds and varieties spaces with a differentiable or topological structure, while "variety" refers to spaces with an algebraic structure, as in algebraic varieties. In Romance languages, manifold is translated as "variety" – such spaces with a differentiable structure are literally translated as "analytic varieties", while spaces with an algebraic structure are called "algebraic varieties". Thus for example, the french word "" means topological manifold. In the same vein, the Japanese word "" (tayōtai) also encompasses both manifold and variety. ("" (tayō) means various.) Ancestral to the modern concept of a manifold were several important results of 18th and 19th century mathematics. The oldest