The fall of Constantinople to the Ottoman Empire in 1453 was a pivotal reason for European exploration.

对于欧洲各国的探险来说，公元1453年土耳其攻陷君士坦丁堡是个关键时期。

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Over much of the western world there still hung the shock of the fall of Constantinople in 1453, an event which seemed the more pregnant.

1453年君士坦丁堡的陷落所造成的震动，仍然笼罩着大部分西方世界，这一事件似乎孕育着更多的东西。

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