Integral Calculus
1675 Gottfried Wilhelm Leibniz makes the first use of the long s, ∫, for integral, helping to develop integral and differential calculus
- 1886 The first ticker-tape parade marking the dedication of the Statue of Liberty is held in New York City [1]
- 1945 American entrepreneur Milton Reynolds launches his "Reynolds Rocket" ballpoint pen in the US, months after the Biros were already on sale in the US
- 1955 Belgium signs an accord for a 5-day work week (45 hours)
Nobel Prize in Literature
1958 Boris Pasternak refuses the Nobel Prize in Literature under pressure from the Soviet authorities, who view the award as a political slight
Hearns Incredible Feat
1987 Thomas Hearns becomes the first boxer to win world titles in four different weight classes
Oldest Astronaut in Space
1998 Space Shuttle Discovery blasts off on STS-95 with 77-year-old John Glenn on board, making him the oldest person to go into space
- 1998 Turkish Airlines Flight 6491 with 39 passengers and crew is hijacked by a Kurdish militant, who orders the pilot to fly to Switzerland; the pilot lands in Ankara, tricking the hijacker into believing he is landing in Sofia to refuel
Archimedes Palimpsest
2008 The 10th-century Archimedes Palimpsest, featuring lost works of Archimedes, is made freely available on the web 10 years after being bought by an unknown tech figure
- 2012 Publishing companies Penguin and Random House merge to form the world's largest publisher
- 2018 New research indicates the cacao tree was first used in Ecuador by the Mayo Chinchipe culture 5,000 years ago, not in Central America as previously thought
- 2018 World Scrabble Championship is won for the fourth time by New Zealand-Malaysian Nigel Richards with the word "groutier" (bad-tempered)
- 2024 Large, complex Mayan city Valeriana, capable of supporting up to 50,000 people from 750 to 850 AD, is rediscovered "by accident" in Campeche State, Mexico, using a LiDAR laser survey from 750 to 850 AD [1] [2]
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