Posts by African American Alumni Association, AKA SD4A
African-American Inventor, Garret A. Morgan in addition to
African-American Inventor, Garret A. Morgan in addition to inventing the traffic light and the gas mask also created the first hair relaxer in 1910. b...
African-American Inventor, Garret A. Morgan in addition to inventing the traffic light and the gas mask also created the first hair relaxer in 1910. b...
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