Gala (apple) total volume of the commercial production of eating apples grown in the UK, often replacing Cox's Orange Pippin. Many sports of Gala have been selected, mostly for increased red color, including the popular "Royal Gala". The original cultivar produced fruit with orange stripes and a partial orange blush over a yellow background. Since then, several un-patented sports have been recognized. Additionally, more than twenty sports have received US plant patents: Unpatented varieties include: Auvil, Imperial Gala apples are grown from May through September in the northern hemisphere, but, like most apples, are available almost all year through the use of
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