Income tax was introduced in the UK so that prime minister William Pitt could collect funds to beat Napoleon.
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France declared war on Spain, leading to the War of the Quadruple Alliance that lasted two years.
Steve Jobs announced Apple's very first smartphone, the iPhone 1.
Connecticut became the 5th state to join the United States of America.
Apple announced iTunes at the Macworld Expo in San Francisco.
Jean Pierre Blanchard flew the first hot air balloon in the US.
