Albert Einstein was probably the most famous scientist of the twentieth century. He revolutionized and reshaped scientific thinking in the modern world. By general consent he is acknowledged as the greatest theoretical physicist who ever lived. Best known as the creator of the Theory of Relativity, Einstein would still rank among the greatest scientists for his part in the idea of quantum mechanics, for his contribution to statistical physics, and for his role as a philosopher of science and as a humanitarian. Indeed, his 1921 Nobel Prize was awarded not for Relativity, but for his theory of the Photoelectric Effect. Albert Einstein was born on March 14, 1879, to middle-class Jewish parents in Ulm,