J. E. Littlewood was a prominent British mathematician known for his significant contributions to various fields, including number theory, analysis, and mathematical logic. Born on March 9, 1885, he collaborated closely with other mathematicians, notably G. H. Hardy, and was influential in the development of asymptotic analysis and complex analysis. Littlewood's work included the famous Littlewood's fourier series and the Littlewood-Paley theory, which have had lasting impacts on modern mathematics. He was also known for his engaging teaching style and his ability to inspire students. Littlewood passed away on July 6, 1977, leaving a rich legacy in the mathematical community.