This chart represents one year's labours. In the following year the first field would take the place of the second, the second that of the third, and the third that of the first. The process would be repeated in the third year, and in this way the rotation would continue to be maintained. There were districts in which the three-field ousted the two-field system; and others in which neither entirely displaced the other. Both eventually gave way to the more modern method of four-course husbandry. The three-field style of agriculture may date back to the remote reign of King Ine, when, it seems certain, open-field cultivation in some form was the rule. This being the case, it was necessary that the fields in which corn and grass were growing should be fenced off for the time being; and one of King Ine's laws has reference to the recognition or neglect of this neighbourly duty: "If churls have a common meadow or other partible land[15] to fence, and some have fenced their part, and some have not, and (cattle stray in and) eat up their common corn or grass; let those go who own the gap and compensate to the others who have fenced their part the damage which there may be done, and let them demand such justice on the cattle, as it may be right. But if there be a beast which breaks hedges, and goes in everywhere, and he who owns it cannot restrain it, let him who finds it in his field take it and slay it, and let the owner take its skin and flesh, and forfeit the rest." The picture this law presents is that of fields divided by temporary fences, in which, if the three-field system were in use, two would be under cultivation and the third fallow. One great field of thirty acres would have sixty distinct strips, with a narrow margin of turf serving in each case as the line of demarcation. To each servile holding in the Confessor's time the landlord assigned a pair of oxen with which to work it; and these may have been combined into a powerful team of eight or twelve, similar to manorial teams, though plough-teams varying in numerical strength are recorded, and the efficiency of some of them may well be doubted. If there were oxen, it is clear that provision must have been made for their support; and this consisted in the hay from the meadow, in the pasture of the common waste, and that of the fallow field and the other fields in the interval between harvest and seed-time. The question whether the tillers were bond or free probably made no difference to the way in which agricultural operations were conducted.