Question

what was the first name of Mahabharata?

Answer 1

Jaya samhitah was the first and original name of mahabharata

Answer 2

The first name of the Mahabharata was Kurukshetra war.

But the texts of radactions are know:-

1-Jaya-- was the first name....given by Vyasa
2-Bharata--was the second redaction.....added by  Vaisampayana
3-Mahabharata-- was the third and final redaction.....given by  Ugrasarva Sauti


Hope it helpss...