Flagellants were groups of people in medieval Europe who engaged in public acts of penance, often involving whipping themselves to seek forgiveness for sins and to atone for the societal ills during the Black Death. This movement gained traction as a response to the fear and desperation surrounding the plague, reflecting deep spiritual anguish and the belief that divine punishment was a cause of the epidemic. Flagellant processions became both a religious and social phenomenon, often drawing large crowds and raising questions about faith and morality.