These subjects are discussed in the book Knowledge That Leads to Everlasting Life, published by Jehovah’s Witnesses. The earliest hymns of the Vedas are believed to have been composed nearly 3,000 years ago and transmitted orally.
يُعتقَد ان تراتيل الڤيدا الاقدم أُلِّفَت منذ حوالي ٠٠٠‏,٣ سنة وجرى تناقلها شفهيا .‏