Caesar is Cirencester.

Caesar is Cirencester.
If you could somehow resurrect Isaac Newton for an interview, he’d tell you that he was born on December 25, 1642—but modern historians cite January 4, 1643 as his actual birthday.
Confused? Take it up with Julius Caesar. In 45 BCE, the Roman dictator implemented a standardized, 365-day calendar (with leap years every four years, eventually) we now call the “Julian calendar.” Unfortunately, it relied on astronomical calculations that overestimated the time it takes the Earth to complete one full rotation around the sun by 11 minutes and 14 seconds. As the centuries passed, those extra minutes and seconds added up; by the mid-1500s, the Julian calendar had fallen about 10 days out of sync with the planet’s rotation. Clearly, something had to be done. So in 1582 CE, Pope Gregory XIII mandated a new calendar. Dubbed the “Gregorian calendar,” it was designed to facilitate some much-needed leap year reform (among other things). The Pope also erased the synchronization problem that the Julian Calendar had created by eliminating 10 full days from 1582. So Thursday, October 4 of that year was immediately followed by Friday, October 15.
But while Roman Catholic countries like France and Spain adopted the Gregorian calendar right away, Great Britain—Newton’s birthplace—didn’t follow suit until 1752. When the UK and its colonies finally implemented this calendar, they did so by striking 11 days from existence, doing away with September 3 through September 13. At the time, Ben Franklin is said to have remarked, “It is pleasant for an old man to go to sleep on September 2 and not have to wake up until September 14.”
Wikipedia