One particularly intense wave of Lost Cause activity occurred during World War I, as the last Confederate veterans began to die out and a push was made to preserve their memories. A second wave of Lost Cause activity occurred in reaction to growing public support for racial equality during the Civil Rights Movement of the 1950s and 1960s. Through activities such as the construction of prominent Confederate monuments and the writing of school history textbooks, the Lost Cause movement sought to ensure future generations of Southern whites would know about the South's "true" reasons for fighting the war, and therefore continue to support white supremacist policies, such as Jim Crow laws. In that regard, white supremacy is a central feature of the Lost Cause narrative.