The answer is: the attack on the Moncada barracks.
Fidel Castro launched a failed attack on the Moncada Barracks in 1953 to overthrow Cuba´s president, Batista, which led to Castro´s imprisonment for a year. After the attack, many leaders were exiled, which was not the case of Fidel Castro, who was imprisoned. However, after his year´s imprisonment he traveled to Mexico, on what could be considered a self-imposed exile given the political conditions in Cuba at that time. From Mexico he gathered a group of followers that formed the Cuban revolutionary movement which eventually would overthrow the government of Batista
Samuel Sharpe was the main instigator of the 1831 Slave Rebellion, which began on the Kensington Estate in St. James and which was largely instrumental in bringing about the abolition of slavery.