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Here's one of the people to thank for your GPS

Gladys West was putting together a short bio about herself for a sorority function that recognized senior members of the group. She noted her 42-year career at the Navy base at Dahlgren and devoted one short-and-sweet line to the fact she was part of the team that developed the Global Positioning System in the 1950s and 1960s.

The 'Harlem Hellfighters,' the first black infantry regiment of World War I.

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