Leatherback Trust Leatherback Trust The Leatherback Trust is a non-governmental organization dedicated to the conservation and study of sea turtles and freshwater turtles, with special regard for the leatherback sea turtle. The Leatherback Trust was founded in 2000 to help consolidate Las Baulas National Marine Park, one of the last major nesting site for the critically endangered leatherback turtle in the Eastern Pacific Ocean. The park protects Playa Grande, Playa Ventanas, Playa Langosta, the ocean out to 12 nautical miles, wetlands, highlands, and the coast inland to 125 m from the high tide line. The Leatherback Trust also supports other sea turtle
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