Vladimir Voevodsky was a prominent Russian mathematician known for his groundbreaking work in the fields of algebraic geometry and homotopy theory. Born on September 4, 1966, he made significant contributions to the development of motivic homotopy theory, which connects algebraic geometry with topology. His innovative ideas earned him the prestigious Fields Medal in 2002. Voevodsky's research focused on the foundations of mathematics, particularly in understanding the relationships between different mathematical structures. He was also instrumental in the creation of the Univalent Foundations, a new approach to the foundations of mathematics that emphasizes the role of homotopy type theory. His work continues to influence mathematicians worldwide.