This is a long post about nothing but for the sake of moving forward I agree that the Big Bang was not recorded in writing by anyone who was there at the time and that if I were to successfully predict the presence in a particular place on a particular day of a German-speaking man in green pants and black hat and fulfilling 100 signs that prove he is the man I am talking about you would not reasonably deny that this was indeed the man I was referring to. .
Ok. So, let me continue a little more with this example of the German speaking man with 100 signs, because then I would use this as an analogy to explain religious prophecies of the End Time.
Now, suppose, I had never seen you, neither it is possible for me to meet you, therefore instead of you speaking to me directly, you had sent me all those promises about the German speaking, and 100 signs in letters/writings. Farther suppose you wanted to give me the day I should expect him; you tell me (in your letters), from the Day Siti's son was born, until the German Speaking comes there will be 6 days. I think with myself, I have neither seen Siti's son, nor I witnessed he was actually born, how can I then possibly count from that time? Thus, what you do is this: another day, your letter comes to me and tells me, from today till the appearance of the promised one, 4 days has remained. Again two days later, your letter comes to me and tells me, we have only 3 days left to the promised one. Thus every day and the same way you do the 'Count Down' and reminder, until finally when 1 day is left, you give the final reminder. Then suddenly I see the next day, in the same place, the man with all the 100 signs appears. Now, think about the following, and tell me, which one is a reasonable objection:
1. Is it reasonable I argue that, since I did not see when your son was born, nor ever seen him, therefor your prediction was false, or that you lied about your son's birth?
2. Is it reasonable that I argue that since I had never seen Siti, and I do not even know he is a real person, or someone else is pretending it is him, all these must be inventions and lies (though the prediction came to pass)?
2. When I see the promised man, he tells me, look, I am the one Siti had said. All the signs are in me. I speak German, I appeared 6 days from his son's birth, and my cloths are same colors he told you. I say, no! even though I see you have all the 100 signs, it is obvious you are pretending to be that person, because, you did not go though every 100 signs and describe they match you. You only referred to a few, and then generally claim you are him, having all the signs.
Now, this is how this analogy is related to the religious prophecies: It was said that when 6000 years is passed from the manifestation of Adam, the old world ends, and a new World comes, which is the day of Manifestation of the Lord. Though we did not see Adam, but, after Him came the word of God again and again, and reminded us of this promised, each time giving a 'Count Down'. For instance, Daniel said only 2300 years has left from the rebuilt of temple to the end. Muhammad said only 1260 years left until the end time. Other Prophets before them had even said 3000 years left. Now, when the Bab appeared, He exactly had all the signs, He appeared just exactly 1260 years after Muhammad, and exactly 2300 years after rebuilt of the Temple. Is it really reasonable to reject Him, though He has all the signs that the previous prophets and the Imams of Shia and Quran alluded? They even had alluded that His name will be 'Ali Muhammad', and when He comes He will be 20-30 years old. They even said When He comes He will be imprisoned for 6 years and after Him another Person comes, who lives 40 years and many other signs which all appeared in the Bab, and Bahaullah, with no signs that ever failed to appear in Them, and their numbers are many!
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Now please proceed to tell me what happened in 4157 BCE.
Even based on time lines in the Bible, many scholars agree that currently more than 6000 years has passed from the time of Adam. Even I found one from a Christian Site, saying Adam created in 4157 or 4156 BC!
In Baha'i View, 6000 years before 1844, a Manifestation of God had appeared. He started a 6000 years Cycle in which many Prophets was to come for progressive revelations. Then when the Bab came, He declared the old world ended, and a new human era begins.