The Holocaust was a period during World War II when the Nazi regime, led by Adolf Hitler, systematically murdered six million Jews, along with millions of others, including Romani people, disabled individuals, and political dissidents. This genocide took place from 1941 to 1945 across German-occupied Europe, where concentration camps and extermination camps were established. The Nazi ideology promoted the belief in the superiority of the Aryan race and sought to eliminate those they deemed "undesirable." The Holocaust is a significant historical event that serves as a reminder of the dangers of hatred, discrimination, and intolerance.