During the 1920s, the political and social climate of the United States became nativist, meaning that many people were unfriendly towards the idea of immigration. In part, this was a reaction to the fear of Communism in the aftermath of the Russian Revolution of 1917. In 1919, several bombs were mailed to prominent people around the country, including Attorney General A. Mitchell Palmer and J.P. Morgan, Jr. Though no one died in these bombings
