When was the first directly measured mass of the Earth’s moon obtained through gravity?

Soon after Newton published Principia in 1687, astronomers began using gravitational theory to estimate the Moon’s mass from its orbital motion. These early calculations were not as precise as modern measurements, but they were an important demonstration that gravity could be used quantitatively beyond Earth. Such work laid the groundwork for later celestial mechanics. Over time, lunar mass and Earth-Moon dynamics became test cases for testing gravity itself.