What incident set off the Sepoy Mutiny?

The Sepoy Mutiny, also known as the Indian Rebellion of 1857, was triggered by the introduction of the new Enfield rifle. Soldiers, or sepoys, were required to bite off the cartridges that were rumored to be greased with animal fat, specifically from cows and pigs, which offended both Hindu and Muslim soldiers. This led to widespread discontent and a revolt against British rule, marking a significant turning point in Indian history. The mutiny ultimately exposed the deep-seated grievances against British colonial policies and practices.