[["The first world fair, known as the first Industrial Exposition, was held in Paris. ", 195.0], ["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\".", 122.0], ["The first world fair was held in London in 1851.", 77.0]]
where was the first world's fair held
history