Ox Team PlowingFrom an eleventh-century calendar showing manorial occupations, this illustration for January — the time for sowing winter wheat — shows two pairs of oxen pulling a wheeled plow. Wheeled plows allowed for faster work and deeper tillage but still required large inputs of human labor. Here one man prods the animals, a second directs the plow blade, and a third drops seed in the ground. (© The British Library Board, Cott. Tib. B. V. 3, Min. Pt 1)