k for the development of modern science. Gottfried succeeded in convincing me that his thesis was truth. The opening chapters gave me a solid background of plague, explaining why he believes it had such an impact on medieval population and culture. Next, it delves into the affect that changing weather had on the plagues, explaining the European environment during 1050-1347; the time of plagues greatest destruction. That complete, Gottfried describes the consequences immediately following the plague. It is said that the disease killed 25% to 40% of Eurasia and part of Africa. By this point, it is more than obvious that plague had a tragic affect on Medieval Europe, but it is unclear as to the causes, and the effect plague had on society, which seemed to be his theses in the opening chapters. But he does not ignore these topics. After giving a full background on plague and European culture and environment, Gottfried gives solid details to support his theses. According to Gottfried, the Medical structure of Medieval Europe, adopted from that of the Romans, was nearly eliminated in the search for ways to cure plague. The spread of plague, successfully stated by Gottfried, directly depends on climate. Plague can only spread under certain climate conditions. In order for Y. Pestis, a series of complex bacterial strains, to survive, it mustn't be too hot nor too cold. Too cold can kill the bacteria, and too hot can slow its progress. During the plague's most devastating times, the temperature was perfect for the spread of Y. Pestis. Gottfried also describes that spread of plague can also depend on the strength of animals. Humans are merely secondary hosts to the fleas carrying Y. Pestis. The fleas afflict their host with the plague when they regurgitate the bacteria. These fleas prefer an animal host, not humans. When their animal host dies, they move on to a secondary host, possibly humans, but not necessarily. When the generation of bacteria...
