News An American tech pioneer, Dr. Marian Croak is living Black History by Ezekiel J. Walker February 22, 2022 by Ezekiel J. Walker February 22, 2022 Pennsylvania-born in 1955, Dr. Marian Croak was groomed for greatness, and her inventions have made the… Create Access By SharingTweetPrintEmail Read more FacebookTwitterLinkedinEmail