Answer:
Teller (Colorado) proposed an amendment to the U.S. declaration of war against Spain which proclaimed that the United States would not establish permanent control over Cuba. ... True to the letter of the Teller Amendment, after Spanish troops left the island in 1898, the United States occupied Cuba until 1902.
Explanation:
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Not only were the royal coffers depleted, but two decades of poor harvests, drought, cattle disease and skyrocketing bread prices had kindled unrest among peasants and the urban poor.
B because during the 1200s and 1300s, the Mongol took over most of Afro-Eurasia. It was unexpected because they were a nomadic group.
A is wrong because serfdom implies the feudal system only seen in Europe and Feudal Japan.
C is wrong because the European Crusaders pretty lost every Crusade to the Muslims. The outcome of the Crusades were Europe's increased interest in Islamic goods.
D is wrong because the Byzantine Christians didn't do the Crusades, the Holy Roman Empire did.