David Gale was an influential American mathematician known for his work in game theory and economics. He was born on September 13, 1921, and made significant contributions to the field, particularly in the areas of matching theory and the theory of cooperative games. Gale is perhaps best known for the Gale-Shapley algorithm, which is used to solve matching problems, such as the stable marriage problem. In addition to his mathematical achievements, Gale was a dedicated educator and served as a professor at several prestigious institutions, including Stanford University and University of California, Berkeley. He published numerous papers and books throughout his career, helping to shape the study of mathematics and its applications in economics and social sciences. David Gale passed away on March 7, 2008.