The reason why Einstein won the Nobel Prize.

Einstein won the Nobel Prize for his discovery of the law of photoelectric effect. In 1922, the Nobel Prize was awarded to Einstein, but not because of the theory of relativity, but because Einstein discovered the law of photoelectric effect. Albert Einstein, a Jewish-American physicist, was the pioneer and founder of modern physics, the master and promoter of critical school's philosophy of science, one of the greatest natural scientists in the 2th century, and the winner of the Nobel Prize in Physics. Albert Einstein was born in Ulm, Germany, on March 14th, 1879. He graduated from the Federal Institute of Technology in Zurich, Switzerland in 19, and obtained Swiss citizenship the following year, which he kept for life. In 192, he was employed by the Patent Office in Bern, Switzerland, and engaged in the examination and appraisal of invention patents. In 195, Einstein published five papers in three fields: quantum theory of light, theory of molecular motion and special relativity, which opened a new era of physics. In the same year, he received a doctorate in philosophy from the University of Zurich. Since 199, Einstein has been an associate professor and professor of theoretical physics at the Federal Institute of Technology in Zurich. In 1913, he returned to Germany as the director of the Institute of Physics of Emperor William and a professor at Humboldt University in Berlin, and was elected as an academician of the Prussian Academy of Sciences. In 1915, Einstein founded general relativity. In June, 192, he was also a special guest professor at Leiden University in the Netherlands. In 1933, Einstein was persecuted by the Nazis and forced to move to the United States, where he was transferred to Princeton Institute for Advanced Studies as a professor until he retired in 1945. In 194, Einstein became an American citizen while retaining his Swiss citizenship. On April 18th, 1955, Einstein died of illness in Princeton.