Calendar dating systems law mandating auto parts availability
At its core, that date—any date really—is just a code.
It's a three-part system allowing those in various locations and points of time to distinguish when an event occurred or will occur. Spoilers: The planet's been around longer than any of us—or any of our ancient relatives—can remember.
Consequently, in places that have fully transitioned from an OS calendar to a NS calendar, dual dates appear in documents over an extended period of time, even centuries.
“The Gospel of Matthew claims [Jesus] was born in the time of Herod the Great, who died in 4 B. “This means the birth must have occurred before this date. The Egyptian civil calendar was introduced later, presumably for more-precise administrative and accounting purposes.It consisted of 365 days organized into 12 months of 30 days each, with an additional five epagomenal days (days occurring outside the ordinary temporal construct) grouped at the end of the year.Carlos Noreña, a scholar of ancient history at University of California-Berkeley. “The Romans didn't impose their dating system,” Noreña says. The most recent dating battle has been a semantic one over the rise of C. “This is a little bit silly for two reasons,” Noreña says.“In the Middle Ages and Antiquity, there were multiple eras jostling for recognition.”The key wasn't what Year One was, as much as getting everyone on the same page. “But because they were so powerful and influential, people picked up their calendar and dating system because it was convenient.”While these were the dominant systems, there was a hodge-podge of various cultures with different Year Ones. “One, they use the same year, so it's the same system.
For example, in "10/21 February 1750/51", the dual day of the month is due to the leap year correction of the Julian calendar by the Gregorian calendar, and the dual year is due to some countries beginning their numbered year on 1 January while others were still using another date.