A revolution in 1959 by Fidel Castro led to Cuba becoming

a communist country.

Answer: Yes, Fidel Castro's revolution in 1959 led to Cuba becoming a communist country. After overthrowing the government of Fulgencio Batista, Castro and his supporters established a new government based on Marxist-Leninist principles. This government was officially declared a socialist state in 1961 and a communist state in 1976.