Open field cultivation for crops only to be cultivated in their growing season, without any additional measures. It is best suitable for areas with minimum climatic variations. The most unmistakably visible feature for the open-field cultivation is that the arable area having a place with a house is separated into numerous long tight furlongs for development. The fields of developed area were not fenced, subsequently the name open-field. Open field systems prevailed in Europe from the medieval times until the 1800's. The size of the strip of land each peasant farmed was defined in acres. An acre was measured by the amount of area that a single farmer could plow in a single day.