I don't know the answer to this question, may be someone else does:

The Jewish religion has been around for a few thousand years. The Christian religion has been around for about 2000 years.

How long did Greek and Roman Mythology last as accepted religions? And I want pretty specific stuff here. I am interested and I know there are some pretty smart people here. So, help me out!

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"Sometimes it is said that man cannot be trusted with the government of himself. Can he, then, be trusted with the government of others? Or have we found angels in the form of kings to govern him? Let history answer this question."
-Thomas Jefferson in his first inauguration address

I don't know that you'll get any real specifics. It's kinda' like asking "How long has grass been green?" Unless you can find a time when it wasn't green, you're unable to make that determination.

I just don't think there's a "start" time to either Greek or Roman mythology, with the possible exception being when both of those civilizations began to grow. Then again, their belief in Gods had to come from somewhere, so it's likely, in my always wildly humble opinion, that a belief in these Gods probably existed before the recognized beginnings of either civilization...

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I didn't mean to sound like a dictator. "Give me specifics you people!"

I will take any answer that people may have, but I would prefer more specific things.

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"Sometimes it is said that man cannot be trusted with the government of himself. Can he, then, be trusted with the government of others? Or have we found angels in the form of kings to govern him? Let history answer this question."
-Thomas Jefferson in his first inauguration address

Well, that was my point. I don't think you could truly find anything specific as far as a "start date"...

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Obama's New "57 State Patriotic Pin":

The problem with the Greek/Roman religions is that most scholars believe they existed before writing was developed. So it is quite hard to gather solid evidence that would point to dates. The same is true with the Germanic religions

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I am a liberal, a classical liberal. Classical liberalism is liberalism, but the current collectivists have captured that designation in the United States. In Europe they are glad enough to call themselves socialists. But no one in America wants to be called socialist and admit what they are.

To get any meaningful answers you'll also have to specify precisely which aspects of "Greek and Roman Mythology" you're referring to.

For example, if by "Roman Mythology" you mean the beliefs of Romans, then obviously the earliest those could possibly have started would be the founding of Rome itself, since there were no Romans before that.
On the other hand, if you mean the beliefs of the people (ethnically and geographically) who came to be Romans, then quite probably those people must have always believed something that would classify as "mythology".

So really, you'd need to specify either a particular form of myth ("The gods of the pantheon", perhaps) or a specific deity and question how long beliefs of that form or in that deity persisted.

We can look at the character of the gods to see what sort of culture invented them.

Were they agriculturalists? Tribalists? Cultists? etc... once you know this and a bit of the history of the region in question, you can determine roughly what you are looking for. There will be no exact answer.

Andrew

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-- Unknown

The Roman and Greek mythology didnt start at a definable time. They evolved from nature religions where people thought there were gods for water, the sun etc. As society became more complex more gods were added, like gods for trade or wine. The amount of gods and their names differed from region to region. When the Romans united the old world many regions simply mixed their own gods with those of the Romans.

Incedentally, the Jewish and Christian religions have not been nearly as consistent in their beliefs and practices as we like to flatter ourselves. "Christianity" may have been around for about 2000 years, but Modern Day Christianity? Certainly not.

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"Jesus said: I have cast fire upon the world, and behold I guard it until it is ablaze."
Gospel of Thomas

I have no clue at the answer, but Think I may be able to improve the question. (My sincere apologies to the OP if I'm mistaken on any of this.)

Christianity has been around for roughly 2000 years. Judaism has been followed for roughly XXXX years. Altho I'm sure there were some hangers-on, we know the Roman pantheon was officially disavowed in YYY AD, after having been followed in substantially recognizable form since about ZZZ BC, for a run of AAA years. Of course it is widely recognized that the Roman pantheon borrowed Very heavily from the Greek pantheon, which was followed in substantially recognizable form from about BBBB BC to CCC BC, or DDDD years, so it could be argued that they should be combined for a single duration.

Please fill in the variables with whatever numbers you feel you can with some vague authority - all reasonable guesses accepted.

The purpose of the question appears to be to determine the average lifespan of a significant 'civilized' western religion, so if you have a decent idea of That, you're welcome to skip the preliminaries above.

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Today's forecast: Government corruption.

Tomorrow's forecast: 100% chance of more 'politics as usual'

Maybe it's finally time to vote Libertarian

Borrowed heavily!? It's practically the exact same thing. Heh. They didn't even bother to change Apollo's name.

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"Jesus said: I have cast fire upon the world, and behold I guard it until it is ablaze."
Gospel of Thomas

No need to apologize, you did a MUCH better job than I did. Thanks, I think this will get the answers that I want, or at least it is more clear than what I asked.

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"Sometimes it is said that man cannot be trusted with the government of himself. Can he, then, be trusted with the government of others? Or have we found angels in the form of kings to govern him? Let history answer this question."
-Thomas Jefferson in his first inauguration address

That was fun. Somebody feel free to correct me where i may be mistaken.

I have a suspicion that the Greek gods can also be melded with the Persian gods, and these together probably go back in some for to the begging of the neolithic revolution ~ 10K years ago.

Andrew

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Ethanol is a fabulous solution to our energy dilemma because it will provide more fuel for us to drive around and look for food.

-- Unknown

Where did you get your info, Andrew?

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I am a liberal, a classical liberal. Classical liberalism is liberalism, but the current collectivists have captured that designation in the United States. In Europe they are glad enough to call themselves socialists. But no one in America wants to be called socialist and admit what they are.

And Christianity has shades of Mithras. etc.

It is the supreme arrogance of a religion to assume that it is solely the product of a commune with God and is not the result of centuries of spiritual evolution/adaptation.

You say that Judaism has been around for 4500 years, but it's not really the same in anything except name. Have you ever read any Spong?

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"Jesus said: I have cast fire upon the world, and behold I guard it until it is ablaze."
Gospel of Thomas