What forced europeans to look for other routes east? land routes were closed off by ottoman turks europeans were conquered by ottoman turks europeans lost interest in eastern products land roots no longer lead to needed goods

The correct answer is: Land routes were closed off by ottoman Turks.

In the year 1453, the Turkish Ottoman Empire conquered the Byzantine capital Constantinople, putting an end to the Byzantine Empire. This circumstance made it difficult for Christian European merchants to travel to the East searching for spices and other products since the Ottomans closed off all land routes. For that reason, the European powers like Portugal and Spain started searching for alternative routes to get to India, like sailing around Africa or a more dangerous trip circumnavigating the globe. The latter option was financed by the Spanish crown and proved by Christopher Columbus and his crew, which led them not to India, but to the discovery of a new continent for them: the Americas.

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