The term rural laborer (or agricultural laborer; French ouvrier agricole, German Landarbeiter, Italian lavoratore agricolo) emerged as a specific social category in the socio-political and social-scientific debates of the late 19th century [3]; [6]. It denotes members of a social group who earned their living exclusively or primarily by wage labor in agriculture, often throughout the year and their entire working life. Rural laborers were employed at short notice as day laborers or with weekly or monthly labor contracts; as a rule, they had no other social…