Question: what were the main events of the war of independence 1857?
Answer: The main event which became the immediate cause of the war was the refusal of the Sepoys to use the grease covered cartridges (greased with fat of pig and cow) on January 23, 1857. At the same time, an Indian sepoy killed two British officers at Barrackpore, when he was forced to use greased cartridges.