What were the long-term causes of the sepoy rebellion?

Mutiny

Explanation:

1857 Sepoy regiments received new rifles. ... 1857 Hindu Sepoys & Muslims united against the British & staged a mutiny, killed their British officers, proclaimed restoration of Mughal authority. Left bitter feelings & caused the British to change their policies.

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the committees of correspondence were the american colonies’ means for maintaining communication lines in the years before the revolutionary war. in 1764, boston formed the earliest committee of correspondence to encourage opposition to britain’s stiffening of customs enforcement and prohibition of american paper money. the following year, new york formed a similar committee to keep the other colonies notified of its actions in resisting the stamp act. in 1773, the virginia house of burgesses proposed that each colonial legislature appoint a committee for intercolonial correspondence. the exchanges that followed built solidarity during the turbulent times and bring about the formation of the first continental congress in 1774.