After World War I ended, Havana emerged as one of the world’s most vibrant cities. During the first half of 1920, rising sugar prices and a favorable global environment meant that credit and finance were flowing into Cuba, fueling the so-called Dance of the Millions. But, as David Lubin recalls in his book Dance of the Trillions, the party ended abruptly before the year was over, owing largely to US interest-rate hikes, which drew liquidity back into the United States. The Cuban sugar industry never recovered.