Like most West European nations, Germany established colonies in Africa in the late 1800's in what later became Togo, Cameroon, Namibia, and Tanzania. German genetic experiments began there, most notably involving prisoners taken from the 1904 Heroro Massacre that left 60,000 Africans dead, following a 4-year revolt against German colonization. After the shellacking Germany received in World War I, it was stripped of its African colonies in 1918.

For further information read Destined to Witness: Growing Up Black in Nazi Germany, by Hans J. Massaquoi

Thanks for this Heena. The museum is just round the corner from me...