How can i find out if I've got some Italian German Irish etc. in me?

have @ "how begin tracing family tree" : http://genealogy.about.com/cs/beginnersc...

i know have indian in me bc of grandpaws mother, don't know wht other heritages have or come from.

how or can find stuff out free?

p.s- ive asked grandparents , can tell me indian...

Society & Culture Languages Next