Who was the first to propose the universal law of gravitation?

Sir Isaac Newton first proposed the universal law of gravitation.

Newton's law of gravity is referred to as "universal" since it is applied to every object in the Universe.

The universal law of gravitation is included in Isaac Newton's book "Philosophiae Naturalis Principia Mathematica (the Principia)".
Newton’s Law of Universal Gravitation states that every particle attracts every other particle in the universe with force directly proportional to the product of the masses and inversely proportional to the square of the distance between them.