elaboration of snuff, the most direct access to its main market, the United States, the uncertainty about the future of the island, which had suffered years of economic, political and social unrest during the beginning of the Ten Years' War against Spanish rule. It was an exodus of skilled workers, precisely the class in the island that had succeeded in establishing a free labor sector amid a slave economy. The manufacture of snuff by the Cuban labor force, became the most important source of income for Key West between 1869 and 1900. Tampa was added to such efforts, with a strong migration of Cubans, which went from 720 inhabitants in 1880 to 5,532 in 1890. However, the second half of the 1890s marked the decline of the Cuban immigrant population, as an important part of it returned to the island to fight for independence. The War accentuated Cuban immigrant integration into American society, whose numbers were significant: more than 12,000 people. Key West and Tampa, Florida In the mid- to late 19th century, several cigar manufacturers moved their operations to Key West to get away from growing laboral and political problems. Many Cuban cigar workers followed. The Cuban government had even established a grammar school in Key West to help preserve Cuban culture. There, children learned folk songs and patriotic hymns such as "La Bayamesa", the Cuban national anthem. In 1885, Vicente Martinez Ybor moved his cigar operations from Key West to the town of Tampa, Florida to escape labor strife. Ybor City was designed as a modified company town, and it quickly attracted thousands of Cuban workers from Key West and Cuba. West Tampa, another new cigar manufacturing community, was founded nearby in 1892 and also grew quickly. Between these communities, the Tampa Bay area's Cuban population grew from almost nothing to the largest in Florida in just over a decade, and the city as a whole grew from a village of approximately 1000 residents in 1885 to over 16,000 by 1900. Both Ybor City and West Tampa were instrumental in Cuba's eventual independence. Inspired by revolutionaries such as Jose Martí, who visited Florida several times, Tampa-area Cubans and their sympathetic neighbors donated money, equipment, and sometimes their lives to the cause of Cuba Libre. After the Spanish–American War, some Cubans returned to their native land, but many chose to stay in the U.S. due to the physical and