Dame Mary Cartwright was a prominent British mathematician known for her contributions to the field of nonlinear differential equations. Born in 1900, she made significant advancements in the study of chaos theory and was one of the first to explore the mathematical principles behind chaotic systems. Her work laid the groundwork for future research in this area. In addition to her research, Cartwright was a dedicated educator and served as a professor at the University of Manchester. She was recognized for her achievements with numerous awards, including being appointed a Dame Commander of the Order of the British Empire in 1965. Her legacy continues to inspire mathematicians today.