Frederick Douglass (Photo credit: Wikipedia)

Women in Mao, where water is provided by a water tower. Access to clean water is often a problem in Chad. (Photo credit: Wikipedia)

Rebuilt Bridge in south west of Chad (Photo credit: Wikipedia)

A Chadian maternity ward. Although improving, Chad’s infrastructure remains far less developed than that of its northern neighbours. (Photo credit: Wikipedia)

English: Orthographic map of Chad (Photo credit: Wikipedia)

English: Carl Lewis in midair during a long jump for track and field as an athlete at the University of Houston (Photo credit: Wikipedia)

English: Carl Lewis in World Championships in Athletics in 1983 Français : Carl Lewis championnats du monde 1983 Helsinki Suomi: Carl Lewis Yleisurheilun maailmanmestaruuskilpailuissa Helsingissä vuonna 1983 (Photo credit: Wikipedia)

Carl Lewis at the “green carpet” for the Save the World Awards 2009 (Zwentendorf Nuclear Power Plant, Lower Austria). (Photo credit: Wikipedia)

African-American Jesse Owens on the podium after winning the long jump at the 1936 Summer Olympics (Photo credit: Wikipedia)

English: Jesse Owens with Ralph Metcalfe at track and field tryouts at Randall’s Island Stadium in New York (Photo credit: Wikipedia)

Jesse Owens shook racial stereotypes both with Nazis and segregationists in the USA at the 1936 Berlin Olympics. (Photo credit: Wikipedia)

Owens performing the long jump at the Olympics. (Photo credit: Wikipedia)

English: Zimbabwe (orthographic projection) Español: Zimbabue (proyección ortográfica) (Photo credit: Wikipedia)

Victoria Falls from the sky, September 2003 Photo by Vberger (Photo credit: Wikipedia)

Flag of Zimbabwe African National Union – Patriotic Front (Photo credit: Wikipedia)

English: Former congressman Mickey Leland of Texas. (Photo credit: Wikipedia)