Charles William Post was an American entrepreneur and inventor, best known for founding the breakfast cereal company Post Consumer Brands. Born on October 26, 1854, in Springfield, Illinois, he initially worked in various fields, including as a salesman and a businessman. His interest in health and nutrition led him to create innovative food products. In 1895, Post introduced Grape-Nuts, a cereal made from wheat and barley, which became popular for its unique taste and nutritional value. He later expanded his product line to include other cereals and health foods, significantly influencing the breakfast food industry and promoting the idea of healthy eating.