What do we call the tool pulled by animals to turn soil?

The story behind the answer

It’s the primary animal-drawn implement that slices into the earth and flips it to create furrows, bury weeds, and aerate soil—preparing fields for sowing in a way hand tools can’t. Unlike a hoe (hand-powered), a harrow (which breaks up clods after tillage), or a cultivator (mainly for weeding between rows), this tool’s share, coulter, and moldboard work together to cut and turn the soil.

In the Middle Ages, the heavy wheeled version with a moldboard transformed Northern European farming. Pulled by teams of oxen or increasingly by horses with improved harnesses, it finally made the region’s dense, wet clay soils productive. That shift boosted yields, supported population growth, and encouraged the open-field system and three-field rotation—cornerstones of medieval agrarian life.