The most common organism in spinal infection is from the bacteria Staphylococcus aureus which typically exists on human skin, followed by Escherichia coli. Most spine infections occur in the lumbar spine because of the blood supply to this region of the spine.
Feudalism, a system of political and military relationships, evolved in western Europe. The feudal system was a simple but effective means of medieval government in which the king rented land to barons, who provided him knights and taxes
noun. Feudalism is defined as a Medieval European political, economic and social system from the 9th to 15th century. An example of feudalism is someone farming a piece of land for a lord and agreeing to serve under the lord in war in exchange for getting to live on the land and receiving protection. Feudalism was abolished in 1836, and in 1848 complete political union with Piedmont was granted, the viceregal government being suppressed, and the island being divided into three divisions of which Cagliari, Sassari and Nuoro were the capitals. 2  Feudalism was not at any time a national institution.