Final answer:
The Nazi symbol was called the swastika, which was adopted by the Nazis in the 1920s. It was a controversial symbol associated with the racist and anti-Semitic beliefs of the party. The swastika was featured in the Nazi flag and symbolized the party's racial ideologies and is now mainly linked to the horrors of the Holocaust.
Step-by-step explanation:
The Nazi symbol was called the swastika. It was adopted as the symbol of the National Socialist German Workers Party (Nazi Party) under the leadership of Adolf Hitler in the early 1920s. The swastika was a highly controversial symbol that had been used by various cultures and ideologies throughout history, but the Nazis associated it with their racist and anti-Semitic beliefs.