Dr. Carter G. Woodson, an American historian and author is credited with starting Negro History Week on February 12, 1926. The second week of February was chosen to coincide with the birthdays of Abraham Lincoln (Feb. 12) and Frederick Douglass (Feb. 14). In 1976, Black History Week was expanded to #BlackHistoryMonth to celebrate the many contributions African Americans have made to our country.
Join us as we recognize and honor the invaluable skills and abilities of African Americans. Technology-related contribution and inventions that have enhanced our lives are listed below.
· Telephone Transmitter, Granville T. Woods
Patent # 303,876/364,619/371,241
Phone static was cleared using the telephone transmitter and was especially effective for long-distance calls.
· Batteries, Granville T. Woods
Patent # 387,839
August 14, 1888
Improvement over galvanic (direct electrical current) batteries. Woods electrolyte batteries are used today. Electrolyte batteries use better conductors, hold more current and last longer than galvanic batteries.
· Computer Codes, Annie Easley, computer scientist, mathematician, rocket scientist
Easley began her career in 1955 as a human computer performing complex mathematical calculations at NASA. She developed and implemented code used in researching energy-conversion systems, analyzing alternative power technology, including the battery technology that was used for early hybrid vehicles and for the Centaur upper-stage rocket.
· Computer, Microcomputer System for Peripheral Processing Devices, Mark Dean
Patent # 4,528,626
Dr. Dean’s use of plug-in subsystems and peripherals like disk drives, video gear, speakers and scanners paved the way for the growth of Information Technology. He holds three of the original nine patents on the computer that all personal computers are based upon.
Photo of Annie Easley courtesy of @NASA.