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1820 - Florence Nightingale born
International Nurses Day is held on 12 May in honour of Florence Nightingale, who introduced professional nursing and a number of social reforms such as better health care for the poor, not just the rich.
1941 - the first programmable computer presented
Silicon Valley has been a hotbed of technology for many years, but it is not the birthplace of the first programmable and fully automatic digital computer, the Z3. It was the brainchild of German inventor Konrad Zuse who presented it to the public in Cologne on this day in 1941.
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