Martin Luther King, 1964 (Photo credit: Wikipedia)

Gracie Mansion, Rev. Martin Luther King press conference / World Telegram & Sun photo by Dick DeMarsico. (Photo credit: Wikipedia)

Martin Luther King leaning on a lectern. Deutsch: 1964: Martin Luther King Português: Martin Luther King (Photo credit: Wikipedia)

Beach with palms in Ghana, Westafrica (Photo credit: Wikipedia)

English: Map of Ghana Español: Mapa de Ghana (Photo credit: Wikipedia)

The Supreme Court of Ghana is a lovely example of the colonial architecture in West Africa. (Photo credit: Wikipedia)

English: Photo of the Independence Arch in Accra, Ghana, built to commemorate Ghana’s independence. The national motto, Freedom and Justice is boldly inscribed at the top of the arch. (Photo credit: Wikipedia)

English: A group of drummers in Accra, Ghana, wearing dashiki shirts and knitted kufi caps. (Photo credit: Wikipedia)

Bloody Sunday – Alabama police attack Selma-to-Montgomery Marchers, 1965. (Photo credit: Wikipedia)

Bloody Sunday (1965) – Alabama officers await demonstrators at the Edmund Pettus Bridge From http://www.usdoj.gov/kidspage/crt/voting.htm (Photo credit: Wikipedia)

Dred Scott’s grave, Calvary Cemetery, St. Louis, Missouri. (Photo credit: Wikipedia)

Dred Scott, whose famous case to gain his freedom began as a lawsuit filed in St. Louis in 1846 (Photo credit: Wikipedia)

Harriet Scott, wife of Dred Scott. Noted from “Frank Leslie’s Illustrated Newspaper, June 27, 1857.” (Photo credit: Wikipedia)

Crispus Attucks (Photo credit: Wikipedia)

An artist’s conception of Crispus Attucks (1723–1770), the first “martyr” of the American Revolution. (Photo credit: Wikipedia)

English: My photo of the Boston Massacre victims grave including Crispus Attucks in Boston Massachusetts’ Granary Burying Ground. (Photo credit: Wikipedia)