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In page Fornebu:

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Oslo Airport, Fornebu (FBU) served as the main airport for Oslo and the country since before World War II and until the evening of October 7, 1998, when it was closed down. Overnight, a grand moving operation was performed, so that the following morning, the new main airport, located inland at Gardermoen (OSL), opened for operations as the main airport, as opposed to previously having been a minor airport.[citation needed]