List of world expositions
From Wikipedia, the free encyclopedia
The Bureau International des Expositions (BIE) sanctions world expositions. Some have been recognised retrospectively because they took place before the BIE came into existence.
The designation "World Exposition" refers to a class of the largest, general scope exhibitions of up to 6 months' duration.[1]
This list does not include BIE-recognised International Horticultural Exhibitions.