Q: What is a world's fair?
A: A world's fair is a large exhibition of industry and culture, also known as an exposition or expo.
Q: When did world's fairs start occurring?
A: World's fairs have been occurring since the middle of the 19th century.
Q: What is the Bureau of International Expositions?
A: The Bureau of International Expositions is the official organization that takes care of world's fairs.
Q: What is the abbreviation for Bureau International des Expositions?
A: The abbreviation for Bureau International des Expositions is BIE.
Q: When was the Bureau of International Expositions established?
A: The Bureau of International Expositions was established in the 1920s.
Q: Who oversees official world expositions?
A: The Bureau of International Expositions oversees official world expositions.
Q: Can any organization hold a world's fair?
A: No, only official world expositions overseen by the Bureau of International Expositions count as world's fairs.