Though many movements and rebellions were considered by imperial bureaucrats to have been led by White Lotus Society leaders, there is reason to doubt that the White Lotus Society had any organizational unity. BJ Ter Haar has argued that the term "White Lotus" was used primarily by Ming and Qing imperial bureaucrats to disparagingly explain a wide range of unconnected millenarian traditions, rebel movements, and popular religious practices.[4] According to Ter Haar, it is clear that the "White Lotus" rebels of the uprisings that occurred between 1796 and 1804 did not voluntarily use the term "White Lotus" to refer to themselves or their movement.[5] The term was only used by the millenarian rebels under intense pressure during government interrogations.