This is of course a restricted version of problem (FW) in which n = 2,m = 3 and all the weights are 1. The Italian physicist and mathematician Evangelista Torricelli (mostly known for inventing the barometer) found a construction method of this point by ruler and compass and it is therefore also called “the Toricelli point”, see Figure 1 for an illustration of Torricelli’s construction. At the beginning of the 20th century, the German economist Alfred Weber incorporated weights, and was thus able to treat facility location problems via the formulation (FW), which was consequently called “the Fermat-Weber” problem. Other names for problem (FW) are “the Fermat problem”, “the Weber problem”, “the Fermat-Toricelli problem”, “the Steiner problem” and many more variants. More details on the history of the Fermat-Weber problem can be found for example in [23] as well as in the survey paper