Sidney Webb was a prominent British social reformer and economist, born in 1859. He co-founded the London School of Economics and was instrumental in the development of the Labour Party. Webb's work focused on improving social conditions and advocating for workers' rights, which significantly influenced British social policy. Alongside his wife, Beatrice Webb, he authored several important texts, including "The History of Trade Unionism." Their research and writings helped shape the understanding of labor movements and social justice in the early 20th century. Sidney Webb passed away in 1947, leaving a lasting legacy in social reform.