Mahabharata was not called so, until very recently. It was originally known as Jayam or Jaya. The original epic was called Jaya, then it was called Vijaya, then Bharata, and finally Mahabharata.
Sahadev, Panadava’s youngest brother knew everything about the future and all events of the war. He even knew about the outcome of the war and who will die and survive in the war.
Eklavya was the son of Prince Devashrava, the brother of Kunti and Vasudev, which also made him a cousin of Lord Krishna and the Pandavas.
Bhishma Pitamah, also called the Ganga Putra, had been cursed by Shikandi while he was young. He had rejected her love and so she had taken an oath to kill Bhishma.
Arjuna was unable to defend the wives of Krishna from common robbers after Krishna’s departure to Vaikuntha. His bow became heavy and he forgot all his mantras.
The real fight was not just between Pandavas and Kauravas, forces from Rome, and Greece were also a part of it.
Karna, once when practicing the Arrow, mistook a Cow for a wild animal and shoots it down. The Brahman cursed Karna that he will be killed by his enemy when his attention is diverted when he is not in combat.
Vedvyas is not a name but a post given to those who had knowledge of Vedas. There were 27 Vedvyas before Krishnadweepayan.
Abhimanyu was an incarnation of a very powerful demon named (Kalayvan) who was capable of killing him at a later point. Abhimanyu’s only weakness was his partial knowledge of Chakravyuha.
Balram gave the title of ‘Duryodhana’ to Suyodhana which means – ‘A warrior which cannot be defeated.’