There was an experiment done to measure the gravity of a mountain in Scotland before the United States was even a thing: https://en.wikipedia.org/wiki/Schiehal

There was an experiment done to measure the gravity of a mountain in Scotland before the United States was even a thing: https://en.wikipedia.org/wiki/Schiehallion_experiment https://en.wikipedia.org/wiki/Schiehallion_experiment "The Royal Society formed the Committee of Attraction to consider the matter, appointing Maskelyne, Joseph Banks and Benjamin Franklin amongst its members"