Innovations in agriculture, trade, and business impacted the social development of Medieval Europe greatly. One development in agriculture during that time period was the three field farming system. This allowed farmers to use more land for growing crops than that of the two field farming system. This is because only on third of their land had to rest so it could get back its nutrients. This impacted Europe because with an increase in food, there was also and increase in population. With an increase in population, trade between cities and towns was encouraged. This is the reason letters of credit were invented because people did not want to be carrying around copious amounts of money. Because of this, a whole new industry was created
