Andrei Kolmogorov was a prominent Russian mathematician born on April 25, 1903, and he passed away on October 20, 1987. He is best known for his foundational work in the field of probability theory, where he developed the modern axiomatic approach. His contributions laid the groundwork for many areas of mathematics and statistics. In addition to probability theory, Kolmogorov made significant advancements in mathematical logic, topology, and turbulence. He was also involved in the development of algorithmic information theory, which explores the complexity of data and information. His work has had a lasting impact on both theoretical and applied mathematics.