Fidel Alejandro Castro Ruz was a Cuban politician and revolutionary who governed the Republic of Cuba as Prime Minister from 1959 to 1976 and then as President from 1976 to 2008. Politically a Marxist–Leninist and Cuban nationalist, he also served as the First Secretary of the Communist Party of Cuba from 1961 until 2011. Under his administration, Cuba became a one-party socialist state; industry and business were nationalized, and state socialist reforms implemented throughout society. Wikipedia
1. Why they are happy?