It was the practise in the vedic culture to record events in a unique way - the human brain... the details are passed down to generations in this manner... they did not see the need to take a piece of palm leaf and write it...coz they did not expect that the world would degenerate to such an extent that they would accept only caron-dating...
moreover, the veduc culture precedes all other forms of religion...
as regards the concept of god, as far as i know, there is no scientific proof in any of the religions... they are also a record of events....but in paper... thatz the only diff...
also, i have read the bible... or rather, had tried to read it... and I found it to be ridiculous... and here, I thought, are those who are sane enough to follow this, but when it comes to the vedic culture, they talk about pragmatism... as for islam... I think, the less said, the better...
Why is faith called thus... it is simply because there would be no reason, but still the mind reacts in a certain way... just as a loving child has faith in his/her mother... so are we in the matter of god...
when you ask for proof? what are you expecting... a piece of cloth belonging to rama... a bone or skin... any piece of architecture for carbon-dating?
the absence of one does not deny the presence of another...