@errante @netdoll @menthol6
but nearly every household was involved in food production, numbers for germany i've found:
1900: 30.6 workers/hectare
1950: 29.2
2000: 3.6
those people weren't all from somewhere else. you've also had people who could make wooden wheels and other wooden instruments in your village, a blacksmith for the horses and so on. industrialization removed the need for this.