Fantastic India- What ancient India really discovered and invented!1. The age of the earthIn the 5th century, the ancients Indians had stated that the earth was 4.3 billion years 2. Concept of relativity...Relativity is no new discovery, just as the concept of light years is no matter for astonishment to people used to thinking of time in millions of kalpas - A kalpa is about 4,320,000 years.”...