Dan H wrote on 02/14/11 at 09:57:07:I find it hard to believe that Jesus the person did not exist just because Fitzgerald says the philosophers and satirists of the time didn't mention him.
Oh, he may truly have existed but perhaps he just wasn't very remarkable, hence why he wasn't written about. Maybe he was a nice guy and preacher and all, but just not very magical. That would explain why he was largely ignored during his lifetime. If, decades after he died, someone started attributing magical properties to him, then he might have started receiving more attention. Makes sense.
Quote:The dudes that originally spread the story didn't gain anything financially.
We can't know anything since they're long dead. There may be other motivations, or maybe there was a way to make money from it. Who knows.
Quote:Why do we start the "Common Era" or AD at around the time of Jesus? Is this a convenience thing, or was it a church thing?
The idea was introduced sometime around the middle ages. In particular, the Gregorian Calender that we're all using was introduced by Pope Gregory. So I guess, yes, it's a church thing. Most people in those times were religious, so I don't imagine there was a problem or criticism of the dating.
Scientists use this system because it's ubiquitous. To them it doesn't really matter what the root year's event is, as long as everyone in the world is speaking the same language. The root event could have been Jesus or Caesar or the Great Pyramid or 1066 or whatever. All those produce nice small numbers and help us refer to most of the historically recorded events (positive or negative years) with small numbers.
But we'd never use "6 billion". Not only are the numbers unwieldy, but there's no way to pinpoint an accurate root. Geologists say earth is 4.5 billion "plus minus a few hundred million" years old, so should we start at 6,000,000,000 or 6,100,000,000? And most significant events in history will fall between 5,999,995,000 and 6,000,002,011. A bit useless, really. Even with Jesus as root we don't have an accurate start. Nobody knows when he was born! Estimates go as high as 6 AD, so we're up to six years off his real birth. But either way, the numbers are small and everyone's using it. "If it ain't broke, don't fix it".
Note that there are other calenders. It's year 5771 in the Hebrew calendar, around 4700 on the Chinese, and we're about 2 years away from the end of the Mayan one, which is supposed to reset in 2012 because it wasn't designed to count any higher.
There is also a "computer calendar". All computers count time as "seconds since 1/1/1970". The current computer time is around 1,297,000,000 seconds. This is the number you see in the URLs for each forum topic. To display dates like "2011", a computer could take the 1297etcetc, do its conversion to work out that it's been 41 years, and add 1970 to it. Some applications have trouble displaying or storing dates before 1970.
tl;dr: Jesus calendar? a churchy decision from centuries ago that stuck and there's no reason to change it.