Graphs, Colourings and the Four-Colour Theorem

The four-colour theorem, a significant mathematical conundrum, challenges whether four colors can adequately color any map without adjacent regions sharing the same color. This problem, first posed in 1852, eluded mathematicians for over a century until its resolution in 1976, aided by electronic computers. The book delves into the historical context, the evolution of the theorem, and the innovative techniques that ultimately led to its solution, highlighting the intersection of traditional mathematics and modern technology.