Percy Julian invented the fire extinguisher, Aero-Foam. It was extensively used during World War II, and was referred to as the United States Navy's "bean soup." More »

Influential people in black history include Percy Julian, Maya Angelou, George Washington Carver and Frederick Douglass. Areas of black history that are most often celebrated are science, entertainment, education and civ... More » History Modern History US History

Some old-fashioned names for boys are names inspired by prominent figures, such as Albert Einstein, or by Biblical names, such as Amos, meaning "carried by God." Several old-fashioned names come from other countries, suc... More » Education

T.J. Marshall is credited with improving the design of the fire extinguisher, with a patent issued on March 26, 1872. He invented a system in which water is pumped through pipes in buildings to individual sprinkler heads... More »

Polish astronomer Nicolas Copernicus, considered the father of modern astronomy, is also, for all intents and purposes, the inventor of the globe. To illustrate his belief that the Earth was spherical, Copernicus built g... More »

The Ancient Egyptians are the well-known constructors of the Pyramids and the Great Sphinx. They invented hieroglyphs, one of the earliest writing systems, and a number system for whole numbers and fractions, including r... More »

Italian astronomer Galileo Galilei was the inventor of the first pendulum clock, after his discovery of isochronism, which is the time that the pendulum takes to swing. Contrary to popular belief, Galileo was not the inv... More »