Consider the following statements about the Revolt of 1857 (Rebels and the Raj) :
1. The Revolt of 1857 began with the mutiny of sepoys in the cantonment of Meerut.
2. The rebels issued proclamations appealing to different sections of the population, highlighting issues against British rule.
3. Sepoys used the panchayat system to make collective decisions during the rebellion.
4. British sources on the revolt exclusively focused on highlighting the atrocities committed by the rebels.