The Communist Party of Cuba held its first party Congress in 1975 .
The Communist Party of Cuba has had additional congresses in 1980 , 1986 , 1991 , 1997 and 2011 .
The Communist Party of Cuba held its first party Congress in 1975 and has had additional congresses in 1980 , 1986 , 1991 , 1997 and 2011 .