 In today's old town, an average household included grandparents, a maid or a journeyman, and often a relative — in all 3–4 adults and 1 child; often with a surplus of men.From the mid 19th century, a modernization of employment contracts caused journeymen to set up their own households and throughout the century the number of household including lodgers increased from one to two third, much because of a housing shortage.A stratification into three social groups can be made for this era