On this day, 146 years ago, March 14, 1879 (February 22, 1879, the lunar calendar), Einstein's birthday. Einstein's mother Pauline had a great influence on his childhood. Einstein was born in a Jewish family in Germany on March 14, 1879. In 1933, he moved to the United States due to Nazi persecution. He died of illness in Princeton on April 18, 1955. At the end of the 19th century and the beginning of the 20th century, with the development of production and the improvement of the level of scientific experiments, people's understanding of nature began to move from the macro world to the micro world, and developed from low-speed movement to high-speed movement. Natural science is facing major breakthroughs. It was during this period that young Einstein stepped onto the stage of natural science as a "traitor" of old scientific theories. In his youth, Einstein had a strong interest in natural phenomena. Wind and rain formed, and the moon hung high in the sky and did not fall... All these surprised him. In 1896, while studying at the Federal Polytechnic University in Zurich, Switzerland, Einstein hoped to become a physicist. But after graduation, Einstein was unemployed and two years later he found a position as a junior clerk at the Patent Office in Bern, Switzerland. Although he lived in great poverty, he still persisted in scientific research and read a large number of books in his spare time. This period laid the foundation for his lifelong scientific research. In 1905, Einstein achieved significant results in three different fields: special relativity, photoelectric effect and Brownian motion, showing astonishing intelligence. However, few people in the scientific community responded to this at that time. The famous French scientist Langevin once told Einstein that only a few people in the world knew what the theory of relativity was. Most people are skeptical, and some even firmly oppose it. This is because the classical mechanical theoretical system founded by Galileo and Newton has achieved brilliant achievements after 200 years of development. Despite the sharp contradictions between the old theoretical system and the new facts, many physicists are still unable to escape its shackles. They tried to accommodate new experimental facts and physical phenomena within the old theoretical framework, but Einstein was not superstitious about his predecessors. He explored the extension of relativity to a wider range of motion situations. He studied this for another 10 years. In 1916, Einstein published his summary book "Principles of General Relativity". Einstein is famous for founding the theory of relativity. The establishment of the principle of relativity is a leap forward in the process of human understanding of nature. Relativity successfully includes traditional physics in its own theoretical system. General relativity broadens mankind's horizons and allows the scope of scientific research from the infinitely small micro world to the infinitely large macro world. Today, relativity has become the theoretical basis of atomic energy science, aerospace and astronomy, and is widely used in theoretical science and applied science. Einstein's great achievement, the theory of relativity, is an epoch-making milestone in the history of the development of natural science. Einstein was not only a great scientist, but also a social activist with a sense of justice. He cares about human civilization and progress. During World War II, he publicly condemned the atrocities of German fascism, making him the target of pursuit by German Nazis. Einstein also condemned Japanese imperialism's aggression against China. In his later years, he advocated banning nuclear weapons and opposed a nuclear arms race. Before his death, he still cared about civil liberties and world peace. On April 18, 1955, scientific giant Einstein died of illness. He made a will during his lifetime, requiring that his ashes be scattered in an unknown place, and that no obituary should be issued, no graves should be built, or no monuments should be erected. All public gatherings, all religious ceremonies, all floral arrangements and all musical ceremonies will be exempted from cremation. According to his will, the only people present at the cremation were: eldest son Hans Einstein, economist Natan, executor of the will, Einstein's most loyal collaborator Ducasse, assistant Neustein, librarian Fantova, and his wife. There were no music, no flowers, and there was silence in the chapel. Only Natan, the executor of the will, read Goethe's poem in tribute to Schiller at the end of the ceremony to express his grief: We have all benefited a lot, and the whole world is grateful for his teachings; what is exclusive to him has long been spread throughout the crowd. He is like a comet on the verge of extinction, shining brightly, combining infinite light with his light forever. Einstein and Mileva got married in 1930, but their marriage was not harmonious. In 1914, Mileva and her two sons Edward and Hans Albert. In 1921, Einstein and his second wife Alyssa, this time they did find happiness. Einstein liked to play the violin and had high attainments. As a Jew, he exiled to the United States during World War II. With the American physicist Oppenheimer, Einstein created many theories throughout his life. Einstein once fell in love with a woman named Konenkova, who was rumored to be a Soviet spy. Einstein and his first wife Mileva Einstein were elected as the "20th Century Man of the Year" deserves Einstein's name to be with his wife and children