The Marathon Distance is Arbitrary

While the marathon is exactly 42.195 kilometers, this specific length was not based on ancient history. It was actually set by a royal whim during the 1908 London Olympics to ensure a race ended right in front of the Queen’s viewing box.

Early marathons varied in length because they were meant to mimic the distance between cities rather than follow a set standard. The 1908 route was specifically extended so the finish line sat directly beneath the royal family’s seats at the stadium. This specific length eventually became the permanent international standard in 1921. It is fascinating that a global athletic tradition owes its precision to the convenience of a monarch.