The strength and wealth of the ottoman empire by the fifteenth century was in: its location as the center of international land trade technological advancements changing its name from constantinople to istanbul revolts that shook the surrounding empires

its location as the center of international land trade

Explanation:

The Ottoman Empire had established on an excellent strategic position, right where all the land routes for trade between Asia and Europe were going through. That put the Ottomans in a position where they control the trade between the two continents, they imposed taxation, and that brought them a great power and wealth. That was also the reason why the Europeans started to look for alternative solutions for trade by using the seas and oceans, which eventually led to the discovery of the New World by accident.

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