Final answer:
Kublai Khan's hosting of foreigners introduced Europe to new ideas and technology, sparking the age of exploration.
Step-by-step explanation:
Kublai Khan's hosting of foreigners indirectly led to an age of exploration in Europe through the exchange of ideas, technology, and knowledge. When Kublai Khan hosted foreigners, they brought with them new advancements and discoveries from their own cultures. These exchanges sparked curiosity and a desire for exploration in Europe, leading to explorers like Christopher Columbus and Vasco da Gama.
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