The strain of swine flu known as H1N1 had its first case in the US.
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The UK issued a new 12-sided £1 coin into circulation.
An Imperial Airways passenger aircraft crashed in Belgium, killing all fifteen on board.
The Vienna Philharmonic Orchestra performed its first concert.
Frenchman Henri Fabre flew the world's first seaplane in Martinique, France.
The world's largest dinosaur footprint was discovered.
