Historically, the great incarnation of Lord Vishnu, Shri Krishna, belongs to the end of the Dwapar Yuga, the third age. The position occupied by him and the role he played in the epic war of Mahabharata are extremely significant and important. The Mahabharata war gave birth to Srimad Bhagwat Gita, which is the celestial divine speech (Devavani) of Shri Krishna.
Scholars have concluded that the epic war of Mahabharata broke out on 12th November 3143 B.C. They came to this result with the help of all the available literary documents and historical records. Also the positions of constellations and astronomical calculations played a major role in calculating the time of the event, over 5,000 years ago. In the ancient method used in India, time was calculated in terms of Kalpas and Yugas. Yugabda marked the beginning of a new era. Astronomically, the present Yuga is Kaliyuga and it started on 18th February 3102 B.C.. Shri Krishna passed away during the few initial years of Kaliyuga.