The "General Theory" often refers to the General Theory of Relativity, proposed by Albert Einstein in 1915. This theory revolutionized our understanding of gravity, describing it not as a force but as a curvature of spacetime caused by mass. It explains how massive objects, like planets and stars, influence the movement of other objects in their vicinity. In addition to its implications for gravity, the General Theory has led to predictions about phenomena such as black holes and the expansion of the universe. It has been confirmed through various experiments and observations, solidifying its status as a cornerstone of modern physics.