Haryana became a state of India on November 1, 1966. The present day Haryana is the region where, along the banks of the River Saraswati, the Vedic Civilization began and matured. It was here that the Vedas were written, as the Aryans chanted their sacred Mantras. Replete with myths and legends, Haryana's 5000 year old history is steeped in glory. It was here that Lord Krishna preached Bhagvad-Gita at the start of the battle of Mahabharat. It was on this soil that saint Ved Vyas wrote Mahabharat in Sanskrit. Before the Mahabharat war, a battle of ten kings took place in the Kurukshetra region in the Saraswati valley. But it was the Mahabharat War, approximately in 900 BC, which gave to the region worldwide fame. Mahabharat knows Haryana as Bahudhhanyaka, land of plentiful grains and Bahudhana, the land of immense riches. The word Hariana, occurs in a 1328 AD Sanskrit inscription kept in the Delhi Museum, which refers to the Haryana region as The heaven on earth.
Excavations of various archeological sites in Haryana, like Naurangabad and Mittathal in Bhiwani, Kunal in Fatehbad, Agroha near Hissar, Rakhi Garhi (Rakhigarhi) in Jind, Sites in Rukhi (Rohtak) and Banawali in Sirsa have evidence of pre-Harappan and Harappan culture. Findings of pottery, sculpture and jewellery in sites at Pehowa, Kurukshetra, Tilpat and Panipat have proved the historicity of the Mahabharat war. These places are mentioned in the Mahabharat as Prithudaka (Pehowa), Tilprastha (Tilput), Panprastha (Panipat) & Sonprastha (Sonipat).
The region has been the scene of many a war because of its being "The Gateway of North India". As years rolled by, successive streams of the Huns, the Turks and the Afghans invaded India and decisive battles were fought on this land. After the downfall of the Gupta Empire in the middle of the 6th century AD, North India was again split into several independent kingdoms. The Huns established their supremacy over the Punjab. It was after this period that one of the greatest King of ancient India, Harshvardhan began his rule. He became the King of Thanesar (Kurukshetra) in 606 AD, and later went on to become the ruler of most of present day North India. In the 14th century, the Tomar kings led an army through this region to Delhi.