C.J. Walker Hair Care Products, 1905

Elijah McCoy, Automatic Lubrication System for railroad and heavy machinery, 1872.

Lewis Latimer, his light bulb carbon filament made street lights possible all over the world.

Richard Spikes, Automatic Gear Shift

Jan Matzeliger, Shoe Lasting Machine.  The bottom and upper parts of the shoe were sewn by the machine allowing for mass production of shoes.

Garrett Morgan, traffic light & gas masks, 1914.

Grandville T. Woods, an electrical engineer, invented the third-rail.  It was a way to move trains, subway cars and trolleys with electrical power.

George Washington Carver (1864[1] – January 5, 1943) was an American agricultural scientist and inventor who promoted alternative crops to cotton,  methods to prevent soil depletion such as crop rotation and over 300 uses for peanuts which were not considered a crop until his work. Carver was the most prominent black scientist of the early 20th century.

Dr. Daniel Hale Williams successfully performed the first open-heart surgery.