Maji Maji Rebellion
The Haya referred to Langheld as "Bwana Mzuri" (Mr. Good) not because he was considered a good person but rather due to his overuse of the Swahili word "mzuri" (good) in his speeches. Langheld's method to keep Haya kings under German control was, in his own words, to "play one off against the other." His successor, Lieutenant Carl Herrmann, was no different regarding the use of diplomatic manipulation to keep Haya kingdoms under German control. Along with the arrival of Herrmann was Lieutenant Franz Richter − the Haya referred to Richter as a "Hauptmann" (Captain), and his nickname was "Bwana Korongo" (Mr. Crane or Stork). During the latter part of Richter's command (ca. 1898-1902) he, along with a contingent of "askaris" and Bahamba (citizens of Kihanja) under the leadership of King Kahigi II, murdered hundreds of Haya from Bukara Kingdom. The event, referred to as the Ngogo massacre, is said to have occurred after Richter became irritated during a confrontation with a gathering of Bakara along the Ngogo River. Richter, who had a heavy hand in Haya affairs through military force and intimidation, has also been implicated in the massacre of 200 people in 1907 during the Maji Maji Rebellion.