A cristian,
You ask questions which the finite mind of man is probably unable understand the answers to, even if we are given their answers.
For the questions you ask are both related to our dimension of time.
Since the "sign" is "related to our dimension of time", such as 4000 years "before jesus etc, i thought my question was appropriate.
And since you have been able to see the "sign". I sincerely decided to ask you some more question. I appreciate your answers, which included:
I don't have all the answers. I wish I did.
That's much better than wt answer.Then i will be back on stand by, save unanswered "tough" questions, try to do my best within humans limitations, and wait for new light.