Interestingly, modern science has estimated that the age of the earth is about 4 billion years. Scholars feel it is uncanny that the Vedic Aryans could have conceived of such a vast span of time over 3,500 years ago that would be similar to the same figure estimated by science today.
"The Secret Teachings of the Vedas: The Eastern Answers to the Mysteries of Life". Book by Stephen Knapp, 1990.
