Hermann Weyl was a prominent German mathematician and theoretical physicist, born on November 9, 1885. He made significant contributions to various fields, including mathematics, physics, and philosophy. Weyl is best known for his work in group theory, representation theory, and quantum mechanics, which have had a lasting impact on modern science. In addition to his mathematical achievements, Weyl played a crucial role in the development of theoretical physics during the early 20th century. He was also involved in the formulation of Weyl's theorem and the concept of Weyl invariance, which are important in both mathematics and physics. Weyl passed away on December 8, 1955.