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The history of the four color problem is one that illuminates much of what makes mathematics such a great topic to explore and was the first instance of a whole new movement in... Read morePublished on Sept. 10 2003 by Charles Ashbacher
One of the most famous theorems in mathematics is the Four Color Map Theorem. It is wonderfully simple to understand, and interesting to spend time doodling on. Read morePublished on April 29 2003 by Rob Hardy