Which African American mathematician and inventor participated as a surveyor in the design of the District of Columbia?

Who was recognized as one of the first African American physicists to make crystallography the focus of his research?

In 1961 who participated in the first non-identical-twin kidney transplant in the United States with Roy Cohn?

Which chemist was named Chicago’s Man of the Year in 1950 in a Chicago Sun-Times poll?

Which surgeon was an authority on the preservation of human blood for transfusion?

Which African American explorer was the first known human to set foot on the North Pole?

Who was the first African American woman granted a U.S. patent, for the invention of the folding “cabinet bed?”

Who invented and patented a bicycle frame that could be folded or taken apart for easy storage?

Which biologist was the first recipient of the Spingarn Medal, which the National Association for the Advancement of Colored People (NAACP) awarded at the time to “the man or woman of African descent and American citizenship who shall have made the highest achievement…in any honorable field”?

Who founded Poro College, the first African American-run cosmetology school in the United States, in 1917?

Whose work at the U.S. Naval Weapons Laboratory in Virginia heavily contributed to the development of the GPS (Global Positioning System)?