Notorious individuals are people who are widely known for their negative actions or behaviors. They often gain infamy due to criminal activities, controversial statements, or unethical practices. Examples include Al Capone, a famous gangster during the Prohibition era, and Adolf Hitler, the leader of Nazi Germany responsible for World War II and the Holocaust. These individuals can have a significant impact on society, shaping public perception and influencing laws or cultural norms. Their actions often serve as cautionary tales, reminding people of the consequences of wrongdoing. Notorious figures can also become subjects of study in fields like criminal psychology and history.