Cross burnings are a symbol of hate and intimidation historically used by the Ku Klux Klan, particularly during the early 20th century. This act of setting ablaze a wooden cross serves as a public display of white supremacy and racial terror, aimed primarily at African Americans and those who supported racial equality. Cross burnings became a way for the Klan to instill fear in communities and assert their racist ideologies, reinforcing racial tensions and violence in society.