Parikshit’s birth and Dharamaraja Yudhisthira’s consecration as a king happened when the Saptarishis were in Makha Nakshatram. To find what this means, in a simple FAQ format with pictures and references and to understand where the debate is please read : http://oldthoughts.wordpress.com/saptarishi-calendar/
It offers confirming evidence of the 3102 BC/BCE date for Kaliyuga.
I did a major upgrade on that page today!