Gottfried Wilhelm Leibniz was a noted German polymath, philosopher, meta-physicist, historian, lawyer and political advisor. Born in the same era as Isaac Newton, in his lifetime he was accused of plagiarizing Newton’s work, but since 1900, scholars have acknowledged that he developed differential and integral calculus, independently of Newton. Today, he finds an important place in the history of mathematics, being acknowledged also for inventing Leibniz's notation, Law of Continuity and Transcendental Law of Homogeneity. Moreover, his works on binary system form the basis of modern computers. He was also a prolific inventor in the field of mechanical calculator, being first to describe a pinwheel calculator, later inventing the Leibniz wheel. In the field of philosophy, he views are considered optimistic and in metaphysics, he is best-known for his theory of monads, which he described as elementary particles with blurred perceptions of one another. Unfortunately, for a man as talented as he was, he received little appreciation during his life time and died a lonely death in Hanover; his funeral being shunned by all except his private secretary.