Expo Zaragoza 2008 was an International Exposition regulated by the B.I.E., the French abbreviation for the International Expositions Bureau (Bureau International des Expositions).
The first international exposition took place in London in 1851. Since its success, numerous expositions have been held all over the world, including the Paris Exposition of 1889, which gave birth to the Eiffel Tower. As these events increased in number, a clear need arose to control their frequency. Thus, the Bureau International des Expositions (BIE) was created in 1928.