The multi-horse hitch pulling big wagons loaded with supplies was a common scene in American history in the nineteenth and early twentieth centuries. Cities bustled with horse-drawn wagons loaded with goods, moving them from ships and railways to warehouses and businesses or carrying loads overland from city to city. Some of the wagons were works of art as companies had them painted to promote their businesses. As the horses moved goods from one location to another they also carried moving advertisements for attracting customers along their routes.

Today you can still see these magnificent horses pulling beautiful wagons that are also moving billboards, but usually during parades or as an exhibition at festivals and horse shows. The famous Budweiser Team is just one of many hitches used to promote products today. They have been so successful that the Clydesdale is often referred to as the Budweiser Horse.
   – from The Book of Draft Horses