Measure of the Earth tells the story of the most celebrated expedition of the European Enlightenment: an international scientific voyage to measure the length of a degree of latitude at the equator, and to thereby determine the exact shape of the earth.
The effort bridged nationalities and spanned hemispheres, pulled back the curtain on the wonders of South America, and inspired Charles Darwin to venture south on the HMS Beagle—yet the work of this miraculous international effort is almost unknown today.