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
Feudalism in England. 1  Middle Ages era, period, life, age and times. 2  Interesting Facts and information about Feudalism in England in the Middle Ages. 3  Middle Ages Feudalism in England.  The cause and effect of feudalism in 1  England. How the system of feudalism was maintained in England.  The decline of Feudalism in England.