(, Xinhai April day), May 1, 1851, the first session of the International Fair opened in London.

1851, the first session of the World Expo to be held in London, England. Fair to showcase the economic success and cultural traditions of each of the participating countries mainly trade activities not directly. The AWE was built in the heart of London's Hyde Park. Exhibition up to more than five months, more than a dozen countries to participate in, and open to the public, exhibitors audience of up to 6.3 million passengers. The Expo opened in London "target =" _blank "> Expo brought huge economic and social benefits.