What practical results did the discoveries of Russian travelers of the early 19th century have?

Russian travelers made their contribution not only to Russian, but also to world science. In the 19th century, sailors began to look for new ways to trade with foreign countries, and therefore they began to study and explore the seas, islands and oceans. Most of all they studied the Baltic and Black Seas. Thus, there was a need to develop new fleets and ships. At that time, knowledge in the field of geography advanced significantly. One of the most famous was the nobleman Kruzenshtern, he offered to travel around the world. He explored routes to China, South Africa and the Pacific Ocean.