5. Over the years, Ralston Purina ventured into other markets such as cereals and food products, by acquiring other ...

When Chex was invented as a breakfast cereal in 1937, it was more likely to be misplaced in another section of the grocery store: the pet food aisle. It was created by Ralston Purina, (today ...

Jan. 10, 1962, was also one of the coldest days ever in St. Louis. Grain dust caused an explosion that set the Ralston-Purina plant on the edge of downtown St. Louis on fire. Making matters worse ...