Leonard C. Bailey (1825-1918)

Leonard Bailey was an African American inventor and businessman in Washington, D.C., in the 19th and early 20th centuries. Born in 1825 to an impoverished free black family, Bailey rose in status by becoming a journeyman barber. Through this success, he eventually came to operate and own many of the … Read MoreLeonard C. Bailey (1825-1918)

Thomas Mensah (1950- )

Dr. Thomas Mensah is a world-renowned Ghanaian-American inventor and chemical engineer. Mensah is most well-known for his pioneering innovations in fiber optics and nanotechnology, though he has found success in other fields of science and throughout his career. Though he frequently travels, Mensah lives in Atlanta, Georgia with his wife and two children, Kimberly and Michelle. … Read MoreThomas Mensah (1950- )

André Rebouças (1838-1898)

Image Ownership: Public domain André Pinto Rebouças was a Brazilian engineer and abolitionist, best known for creating one of the world’s first self-propelled torpedoes during the Paraguayan War. Rebouças was born on January 13, 1838 in Cachoeira, Brazil. The son of Antônio Pereira Rebouças, a prominent lawyer and politician … Read MoreAndré Rebouças (1838-1898)