Part 1 of Essay
Over the course of world history, there have been many factors that have changed the course of Western European history. Two of those main factors were the inventions of the chest harness for the horse and the three-field system of agriculture. The harness for the horses of the early middle ages was poorly designed and n ....

Part 2 of Essay
.... field divided in half, one half of a field with crops and left the other half of a field was left unplanted for a year so as not to exhaust the soil. This system led to problems, because dividing the land in half led to shortages in the production of food because only half of the field was being used. This system of agriculture needed some minor adjustments to increase the production of food without destroying the soil in the process. This new system came about around the year 800. Farmers began to use a new ....