FACTBOX: Key facts about Cuba

(Reuters) - Key facts about Cuba, whose long-time but ailing ruler, Fidel Castro, said on Tuesday he would not return as president:

* POPULATION: 11.4 million, mainly descendants of Spanish colonists and slaves brought from Africa. Capital Havana has a population of 2.2 million. Official language is Spanish.

* AREA: At 44,206 square miles, Cuba is the largest island in the Caribbean and lies 90 miles south of the Florida Keys. Cuba is surrounded by an archipelago of 1,600 coral keys and islets, most of which are uninhabited. Apart from the Sierra Maestra, which rises to 6,540 feet (2,180 meters) in the southeast, the country consists of flat plains and low, undulating hills. Climate is tropical.

* BEST-KNOWN CUBANS:

- Fidel Castro (1926-). Rebel chief who took power in 1959 and is now one of world's longest-serving leaders.

- Jose Marti (1853-95). Writer and hero of 19th century independence struggle against Spanish colonial rule. Died riding into battle.

- Fulgencio Batista (1900-73). Ex-dictator defeated by Castro in 1959 Cuban Revolution. Died in exile in Spain.

- Antonio Maceo (1845-1896). General who led Cuban independence army in 19th century fight against Spaniards.

- Alejo Carpentier (1904-80). Novelist and music expert.