What was the significance of the europeans closing of the silk road? ?

The Silk Road was a network of trade routes, formally established during the Han Dynasty of China, which linked the regions of the ancient world in commerce. As the Silk Road was not a single thoroughfare from east to west, the term 'Silk Routes’ has become increasingly favored by historians, though 'Silk Road’ is the more common and recognized name. Both terms for this network of roads were coined by the German geographer and traveler, Ferdinand von Richthofen, in 1877 CE, who designated them 'Seidenstrasse’ (silk road) or 'Seidenstrassen’ (silk routes). The network was used regularly from 130 BCE, when the Han officially opened trade with the west, to 1453 CE, when the Ottoman Empire boycotted trade with the west and closed the routes.

Ivan the terrible, or Ivan IV, was the first tsar of Russia. During his reign he gained lots of land through creating a centrally controlled government