Conversation so far:
What are some of José Martí's most significant works?
Jose Marti's newspaper Patria was an important instrument in his campaign for Cuban independence. Versos Sencillos was adapted to the song Guantanamera, which has become the definitive patriotic song of Cuba.

Question: How did he contribute to Cuban independence?
Self-contained rewrite: How did José Martí contribute to Cuban independence?