Holocaust documentation refers to the collection and preservation of evidence related to the Holocaust, the systematic genocide of six million Jews and millions of others by the Nazi regime during World War II. This documentation includes photographs, testimonies from survivors, official records, and artifacts from concentration camps, which help to provide a comprehensive understanding of the events that took place. Organizations such as the United States Holocaust Memorial Museum and the Yad Vashem in Israel play crucial roles in gathering and maintaining these records. They aim to educate the public about the atrocities of the Holocaust and ensure that the memories of the victims are not forgotten.