In 1966, the year Walt Disney died, 240 million people saw a Disney movie, 100 million tuned in to a Disney television program, 80 million bought Disney merchandise, and close to seven million visited Disneyland. Few creative figures before or since have held such a long-lasting place in American life and popular culture.

When William Morgan was executed outside a Havana prison on March 11, 1961, his strange story seemed to vanish from the popular imagination as quickly as it had appeared; it was lost in the classified archives of the Cold War and edited out of Cuban history by Fidel Castro’s retelling of the revolution.