QUESTION: WHY DO SOME PEOPLE CALL SRI KRISHNA "SUPREME PERSONALITY OF GODHEAD" WHILE NO VEDIC SCRIPTURE DESCRIBES HIM SO?

Sometimes I feel, as Dwapar Yuga i.e. period in which Krishna stayed at earth, was only 5000 years old, we have found many things which proves the existence of him like submerged Dwarka Nagari (in Gujurat), Mathura & Vrindawan (in Uttar Pradesh) etc.

However, we are unable to found much more evidence of other Gods which are millions years old. So it might be a reason, people trust the existence of Krishna is more than other deities, so they used to call that "Krishna is the supreme personality of godhead".

BUT, LORD SHIVA IS THE SUPREME DEITY OF ALL THE GOD HEADS AND THE SAME HAS BEEN WRITTEN IN LING PURAN.

Refer:-

http://basicsofhumanlife.blogspot.in/2014/03/birth-of-universe.html

http://basicsofhumanlife.blogspot.in/2014/03/role-of-lord-shiva-in-creation-of.html