Seven Bridges of Konigsberg

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The city called Konigsberg was changed in 1946, to Kaliningrad. This city was intertwined with a famous historical math problem that involved Leonhard Paul Euler. Euler believed that there was a path that was able to be walked across seven bridges just one time between the islands that were connected by these bridges. This mathematical problem later led to mathematical branches of topology and graph theory. Leonhard Paul Euler was born on April 15, 1707, he was known as a great mathematician and a physicist. He made important discoveries in the mathematical fields of calculus and graph theory, and was well-known for his works in mechanics, optics, and astronomy. Leonhard Euler was the most one of the best mathematical writer of all times finding time between his thirteen children, to publish over eight hundred papers in his lifetime. He had a remarkable memory, after he lost eyesight in both eyes his memory aided him in publishing his work by dictating them. A man named Francois Arago said of him "He calculated just as men breathe, as eagles sustain themselves in the air." Euler was one of the greatest mathematicians of the 18th century. In 1736, Euler’s negative resolution arranged the foundations of graph theory and foreshowed the idea of topology.The city of Konigsberg was set on both sides of the Pregel River, and there were seven bridges that connected the two large islands to each other and the mainland. People were stumped because they could not find a way to cross each bridge without crossing a bridge twice. The mathematical problem that involved these seven bridges was to find a path that would cross every bridge just once and no more than once. The islands could only be reached by the bridges, there were no other routes that could be taken. This problem was presented to Euler since no one could find a way to overcome this problem. “Euler,

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