4 is, Fidel Castro establishes a revolutionary socialist state in Cuba after he and a group of guerrilla fighters successfully revolt against President Fulgencio Batista. Batista, who had been supported by the U.S. government for his anticommunist stance, flees the country after seven years of dictatorial rule. Castro gradually strengthens relations with the Soviet Union. Hope this is what you needed! ʕ→ᴥ←ʔ
The annexation of Texas, a slave state, raised a lot of tension because it ruined the balance of power between the North free states and the South slave states.
The correct answer is the railroad locomotives. A railway
locomotive is composed of a steam engine in which they are likely to be fueled
with a material that is burning and combustible in which could be wood or coal
in mans of producing a steam from a boiler.