In honor of Black History Month, here are few profiles of contributors to history of African descent:

Percy L. Julian
One of the most important scientists of the 20th century, Julian was one of the first to harness the power of plants using the process of synthesis. Synthesis was critical to the medical industry because it allowed scientists to create chemicals that were rare in nature. The chemist’s work led to the birth control pill and improvements in the production of cortisone. In 2007 PBS’s NOVA made a documentary on his life called Forgotten Genius
Valerie Thomas
Inventor of the Illusion Transmitter
Did you ever think of what it might be like if your television could project the on-screen image directly into your living room as a 3-Dimensional image? Maybe not, but if it happens, you’ll have African-American inventor Valerie Thomas to thank for it.From 1964 to 1995, Thomas worked in a variety of capacities for NASA where she developed real-time computer data systems, conducted large-scale experiments and managed various operations, projects and facilities. While managing a project for NASA’s image processing systems, Thomas’ team spearheaded the development of “Landsat,” the first satellite to send images from space.



