Those Who Cannot Remember the Past are Doomed to Repeat It.

A Thematic Interdisciplinary Unit on the Holocaust No single century in history experienced the deaths of more civilians than did the 20th century. Along with the disease, famine, and war came the most extensive genocide in the history of mankind--the Holocaust. Because of the sheer numbers involved, in addition to its horrors and supposed justification by a "civilized" and "modern" culture, this period must be taught to and studied by every generation.