Puzzle

I look back in time
and see what I find

A few years back
the year I don't forget
it was my age multiplied thrice

And can you beat it
I am now square of that age

When I look ahead
the years equal to that age
my son would not be a child or in adolescent age

That year too I shall distinctly remember
it shall be square of his age

The time passes so quickly
and hardly a century one makes
but can you tell me the year of my birth and my present age?