Premise: Promotus Advertising, (from Latin Promotus, meaning: "to advance (someone) to a higher grade or office"; "to move forward, advance"; "to further the growth or progress of (anything).") located in Indianapolis, Indiana, was started in 1983 by Bruce Bryant during a time when there were very few African Americans working in the advertising business and no African American owned agencies.
Hypothesis: Promotus Advertising had no African American employees in leadership positions.