On 2 September 2013, Diana Nyad completed the first unassisted open-water swim from Cuba to Florida at age 64, covering 177 kilometres in 53 hours through shark-infested waters and jellyfish blooms. The same date in 1752 marked Britain’s adoption of the Gregorian calendar, when eleven days simply vanished overnight as the country corrected centuries of accumulated timekeeping error. In 2006, a Siemens locomotive set a world speed record for conventional electric trains at 357 kilometres per hour on German track. And in 1649, Pope Innocent X ordered the complete destruction of the Italian city of Castro, razing it stone by stone and salting the ground. Four stories of human determination, administrative boldness, engineering ambition, and papal fury, all sharing a September date.

• Introduction A woman walks out of the sea in Key West after 53 hours of continuous swimming. Setting up four stories from 2 September across different centuries.
• Diana Nyad Swims from Cuba to Florida At 64, Diana Nyad became the first person to complete an unassisted swim from Cuba to Florida on 2 September 2013, after four previous failed attempts. The 177-kilometre crossing took 53 hours through dangerous conditions including sharks and jellyfish.
• Great Britain Adopts the Gregorian Calendar On 2 September 1752, Britain skipped eleven days to align with the Gregorian calendar, jumping directly to 14 September. The correction ended 170 years of calendar drift from the rest of Europe.
• The Siemens ES64U4 Sets a World Speed Record On 2 September 2006, a Siemens locomotive reached 357 kilometres per hour on track between Nuremberg and Ingolstadt, setting a world record for conventional electric locomotives that still stands.
• Pope Innocent X Destroys the City of Castro On 2 September 1649, papal forces completely destroyed the Italian city of Castro on Pope Innocent X’s orders, salting the ground and erecting a column reading ‘Here was Castro’. The action ended the Wars of Castro.
• Outro Four stories of definitive action, from personal achievement to calendar reform, engineering triumph, and political erasure. Reflecting on different scales of human decision-making.

• https://www.bbc.co.uk/news/world-us-canada-23946174
• https://www.theguardian.com/sport/2013/sep/02/diana-nyad-completes-cuba-florida-swim
• https://www.npg.org.uk/collections/search/portrait/mw144449/Diana-Nyad
• https://www.rmg.co.uk/stories/topics/old-style-new-style-dates-why-did-britain-lose-11-days-1752
• https://www.historytoday.com/archive/months-past/british-calendar-reform
• https://www.siemens.com/press/en/pressrelease/?press=/en/pressrelease/2006/09/axx20060960.htm
• https://www.railway-technology.com/projects/nuremberg-ingolstadt-high-speed-rail-line/
• https://www.britannica.com/topic/Wars-of-Castro
• https://www.jstor.org/stable/206673