Comment by utkarsh858

In India, there is a custom of passing ancient knowledge through poetic verses. Every poetic verses is sung in a specific 'meter'. If there is a discrepancy in recitation then remembering and passing knowledge 'letter by letter' can not succeed. Many of the verses are thousands of years old. I read some describing an ancient extinct river ~7000 years ago, later rediscovered through satellite imagery (don't know the right term).