Start Created ad bc dating system

Created ad bc dating system

BC/AD doesn't have that great a foothold, in any case - it seems "Anno Salutis" and other versions abounded before anyone got used to BC/AD. Jews and others do not object to using the same calendar that dominates Western society, they object to a naming scheme that states quite literally that Christ was the messiah.

@Jez, no, the dates are based around what is commonly understood to be "year 0" (not that such a year actually existed or that Christian scholars think "BC/AD" accurately reflects Jesus's birthday anyway)[email protected], I do agree the one letter's difference is a shame for readability...

As far as I can tell, the idea of "Common Era" goes back at least to the 1700s use of "Vulgar Era", so it's not just political correctness.

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.

The first two parts—the month and date—have had a legion of originators, from Cro-Magnon astronomers marking phases of the moon on their eagle bones, to Mayan mystics tracking the movements of the stars from their forest canopies. Tests date the Earth to about 4.54 billion years old, but a whole lot of that time didn't really have anything of substance—to us humans, at least.

The 365-and-change-day calendar we use is the result of scientific sweat, an attempt to bring us to a Verifiable Truth regarding how long it takes the Earth to complete one rotation around the sun. Starting a calendar 4.54 billion years ago doesn't make much intuitive sense.

Many different calendars have been used since man began tracking time. The use of BC and AD for numbering calendar years was invented by Dionysius Exiguus in 525 AD.