160th anniversary of the first World Fair (01-05-2011)

A world's fair, world fair, world exposition, or universal exposition (sometimes expo or Expo for short) is a large international exhibition designed to showcase achievements of nations. World's fairs originated in the French tradition of national exhibitions, a tradition that culminated with the French Industrial Exposition of 1844 held in Paris. The best-known 'first World Expo' was held in The Crystal Palace in Hyde Park, London, United Kingdom, in 1851, under the title "Great Exhibition of the Works of Industry of All Nations". These exhibitions vary in character and are held in varying parts of the world. The next world Expo is Expo 2020 and is to be held in Dubai.