krishna is human being?

krishna is human being?

i like every thing about krishna

i can understand and feel experience krishna consciousness
but i have one query

is krishna a historical personality with a birth and death, like any man or

is krishna a allegory, a icon a symbol, a creation by the saints
Are there no better bodies other than human bodies in the whole universe

the parabrahma could have created a better body than flesh and blood human

still i feel krishna is only a character in the scripture, not a real existence like we humans on earth
Any historical records? who saw , when, where, how