Throughout the middle 20th Century, the black residents of the city were subject to hostile racial prejudice and social injustices. Between 1955 and 1970, the people of York experienced racial discrimination leading to riots, most notably the 1969 York Race Riot, which resulted in the death of Lillie Belle Allen and Henry C. Schaad. These murders were largely left ignored until 31 years later, when allegations of murder and racial prejudice were raised against the mayor at the time, Charlie Robertson. Additionally, throughout the entire century, the city commonly held unopposed Ku Klux Klan rallies and public meetings, despite continuous racial tensions. Though the murders of Allen and Schaad were solved and the perpetrators were apprehended, the actions, which originate back to the beginnings of the hate group, continue to present day.