Historical clue formulations

• Bantu speakers — 2018-06-26
• Victors of the 1879 Battle of Isandlwana — 2012-09-01
• Relatives of the Xhosa — 2005-08-31
• Boer fighters — 2002-09-03
• Natal natives — 1996-12-14
• Z's, in code — 1995-05-05