Vladimir I. Arnold was a prominent Russian mathematician known for his contributions to various fields, including dynamical systems, topology, and mathematical physics. Born on June 2, 1937, he made significant advancements in the study of ordinary differential equations and singularity theory, influencing both theoretical and applied mathematics. Arnold was also an advocate for the importance of teaching mathematics in an engaging way. He authored several influential books and papers, promoting a deeper understanding of mathematical concepts. His work has inspired many mathematicians and students around the world, leaving a lasting legacy in the field.