sources:
http://satyavidya.com/vedicname.htm
http://en.wikipedia.org/wiki/Vishnu
www.beingjewish.com/mesorah/ageoftorah.html
http://www.allabouttruth.org/when-was-the-bible-written-faq.htm
http://spokensanskrit.de/
http://www.oocities.org/ebionite23/page20.html
http://www.truthbeknown.com/jesus_in_india.htm
http://www.near-death.com/experiences/origen047.html
In Rigved the oldest scripture on earth Vishnu and Pitar (father) are the titles/names and in bhagavatgita Sri Krishna confirms it by saying