Nenikékamen, or about constrained geometry
text published on C3 Magazine, n.318
Nenikékamen (We have won) screamed Pheidippides when he arrived in Athens, in the summer of 490 B. C., to bring news about the successful battle of Marathon. After screaming the glad tidings, he died, destroyed by fatigue (not only from the stretch from Marathon to Athens, but especially for the 500 km travelled in the two previous days, between Athens and Sparta).

Luc-Olivier Merson, Painting of Pheidippides, 1869
The conclusion of the battle became epic and, for the first time, a distance became a legend. That distance is 40 kilometers, the distance from Marathon to Athens, which became even more intriguing because of a change made for the London Olympics in 1908, when it was decided to increase the distance of the modern marathon to 26 miles, and then again to 26 milesand 385 yards, to put the finish line just below the royal stage. Thus, for a little over one hundred years, the legend has set its final limits at 42 kilometersand 195 meters.
The 1500 years that separate the martial event from the sport one do not change the sense of the physical act: fixing a geometric distance which, contemporary, gives the measure to a time and a space. And, so, the pure geometry that fixes a line from one point to another can transform itself into poetry, contained in the tale of heroic deeds.

