Leibniz was correct about rising and falling bodies, but the Cartesians (Descartes had died in 1650) pointed to other experiments in support of the mv-formula. Unfortunately for the early debate, the issue could not be decided—because both sides had been right; there is both momentum and kinetic energy. So the arguments continued for decades. After Leibniz’s death (1716), the controversy continued through his followers, who quarreled with the current crop of French Cartesians. Newtonians were split over vis viva; Newton and his British fans rejected it, while continental Newtonians accepted it.  After Newton’s death (1727), in the 1740s, the issue was settled—in Newton’s favor. D’Alembert proved that there is a place for both quantities in physics (1743). Before that, Euler (1737) had already found out that Descartes’s momentum is Newton’s force acting over time, and Leibniz’s kinetic energy is Newton’s force acting through space. It did take, however, a while before this information spread and became generally accepted. The debate died down around the time Kant published the Living Forces (1749).