Rowland Hill was an English teacher and social reformer, best known for his significant contributions to the postal system. Born in 1795, he proposed the idea of a uniform postage rate based on weight rather than distance, which led to the introduction of the Penny Black, the world's first adhesive postage stamp, in 1840. This innovation made sending letters more affordable and accessible to the general public. In addition to his work on postal reform, Hill was also involved in education. He advocated for improved teaching methods and the establishment of free schools. His efforts laid the groundwork for modern educational practices and helped shape the future of public education in England.