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sinds de 11e en 12e eeuw verspreidde het drieslagstelsel zich over west-europa en over rusland. eeuwenlang bleef dit het heersende systeem in de landbouw en het handhaafde zich tot in de 19e eeuw en in vele landen zelfs tot op de dag van vandaag.
the three-field system began to spread in western europe between the ninth and the tenth and in russia from the eleventh and twelfth centuries onwards: it remained dominant throughout many centuries, being preserved until the nineteenth century and, in many countries, even to the present time.