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McDonald's is the world' biggest chain of fast food restaurants and was founded in 1954 by the brothers Dick and Mac McDonald. Today, there are McDonald's restaurants in 119 countries and territories, serving around 58 million customers every day in 31,000 restaurants. Some 1.5 million people work for McDonald's, which has its own university, Hamburger University, in Oak Brook, Illinois. New franchisees and leaders are trained here. Though the core menu is constant, there are local changes - in Indonesia, you can e.g. order a 'McRice'.