Chen Ning Yang is a renowned Chinese-American physicist, born on September 1, 1922, in Hefei, China. He is best known for his groundbreaking work in theoretical physics, particularly in the field of particle physics. Yang, along with Tsung-Dao Lee, proposed the concept of parity violation in weak interactions, which challenged existing beliefs in physics. In 1957, Yang and Lee were awarded the Nobel Prize in Physics for their significant contributions to the understanding of fundamental forces. Yang has also made important contributions to statistical mechanics and quantum field theory, influencing the development of modern physics throughout his career.