European Horse Collar (Shoulder Harness)

Timeline

1. c. 900–950Agricultural regions of the Carolingian Empire · Frankish KingdomThe padded horse collar shifted pulling force from neck and throat to the shoulder blades, preventing horses from suffocating under heavy plowing loads and laying the animal-power foundation for later heavy wheeled plows.
2. c. 1190–1200England and northern France · Western EuropeBy the end of the twelfth century, the shoulder-borne horse collar was widely paired with heavy wheeled plows and four-wheeled freight carts, becoming the standard animal-draft harness system for overland transport on manors and in towns.
3. c. 1200–1300Northern Europe and the Baltic coast · Northern EuropeThe shoulder-collar harness system spread to Northern Europe, meeting heavier freight and land-clearance needs and raising the effective draft power per horse in overland transport and field work.